21 34 let x be a random variable with pdf f(x)=1/13,21 find p(x>30) (round off to second decimal place).

Answers

Answer 1

Let x be a random variable with pdf f(x) = 1/13, 21 P(X > 30) = 0.31.



We are given that X is a random variable with a probability density function (pdf) of f(x) = 1/13 for the interval 21  x  34.

We are asked to find P(X > 30), which means we need to find the probability of the random variable X being greater than 30. To do this, we will calculate the area under the PDF in the interval [30, 34].

Step 1: Determine the width of the interval [30, 34].
Width = 34 - 30 = 4

Step 2: Calculate the area under the PDF in the interval [30, 34].
Since the pdf is a constant value (1/13) within the given interval, we can calculate the area as follows:
Area = f(x) * width
Area = (1/13) * 4

Step 3: Round off the result to the second decimal place.
Area ≈ 0.31 (rounded to two decimal places)

So, P(X > 30) ≈ 0.31.

visit here to learn more about probability:

brainly.com/question/30034780

#SPJ11


Related Questions

(a) If A is a 3 × 5 matrix, then the rank of A is at most . Why?(b) If A is a 3 × 5 matrix, then the nullity of A is at most . Why?(c)If A is a 3 × 5 matrix, then the rank of AT is at most . Why?(d) If A is a 3 × 5 matrix, then the nullity of AT is at most . Why?AT= A transpose

Answers

The following parts can be answered by the concept of Matrix.

(a) If A is a 3 × 5 matrix, then the rank of A is at most 3. This is because the rank is the maximum number of linearly independent rows (or columns) in a matrix, and since A has only 3 rows, it cannot have more than 3 linearly independent rows.

(b) If A is a 3 × 5 matrix, then the nullity of A is at most 5. The nullity is the dimension of the null space of A, which is the space of all solutions to the homogeneous system Ax = 0. The number of variables in this system is equal to the number of columns in A, which is 5. Therefore, the nullity cannot exceed 5.

(c) If A is a 3 × 5 matrix, then the rank of AT (A transpose) is at most 3. When transposing A, the number of rows and columns are switched, making AT a 5 × 3 matrix. The rank is still the maximum number of linearly independent rows (or columns), so the rank of AT cannot be more than the number of rows in AT, which is 3.

(d) If A is a 3 × 5 matrix, then the nullity of AT (A transpose) is at most 5. Since AT is a 5 × 3 matrix, the nullity corresponds to the dimension of the null space for the homogeneous system ATx = 0, with 3 variables. By the rank-nullity theorem, the rank plus the nullity of a matrix equals the number of columns in the matrix.

Therefore, the nullity of AT is at most 5, as the number of columns in A is 5.

To learn more about Matrix here:

brainly.com/question/28180105#

#SPJ11

Assuming the number of views grows according to an EXPONENTIAL model, write a formula for the total number of views (V) the video will have after t days. NOTE: The input variable in the function below is t and the equals sign is already given. There should NOT be any z's or y's in your answer. V(t) = _____

Answers

If the number of views grows according to an exponential model, then the formula for the total number of views (V) the video will have after t days can be expressed as:
V(t) = A * e^(kt)

where A is the initial number of views, e is Euler's number (approximately equal to 2.71828), k is the growth rate constant, and t is the time in days.


In this formula, the exponential function e^(kt) represents the growth factor of the video views over time. The larger the value of k, the faster the video views grow over time. On the other hand, the value of A represents the initial number of views at t=0, and it determines the vertical shift of the exponential function.

Therefore, the formula for the total number of views (V) the video will have after t days, assuming an exponential model, is:

V(t) = A * e^(kt)

Learn more about "exponential model": https://brainly.com/question/16407547

#SPJ11

Does either of P = (4, 11, 25) or Q = (-1, 6, 16) lie on the path r = (1 + t, 2 + t^2, t^4)? Both points lie on the path of r(t). Point P lies on the path of r(t). Point Q lies on the path of r(t). Neither point lies on the path of r(t). Find a vector parametrization of line through P = (3, 7, 4) in the direction v = (7, -8, 4) r(t) =

Answers

The correct statement is:

Point P lies on the path of r(t).Point Q does not lie on the path of r(t).

The vector parametrization of the line is:

x = 3 + 7ty = 7 - 8tz = 4 + 4t

How to determine whether points lie on the path?

To determine whether points P = (4, 11, 25) or Q = (-1, 6, 16) lie on the path r = (1 + t, 2 + t², t⁴), we can substitute the values of P and Q into the parametric equations of r(t) and see if they satisfy the equations.

For point P = (4, 11, 25):

Substituting into r(t):

x = 1 + t

y = 2 + t²

z = t⁴

Comparing with P = (4, 11, 25), we see that all the coordinates match. Therefore, point P lies on the path of r(t).

For point Q = (-1, 6, 16):

Substituting into r(t):

x = 1 + t

y = 2 + t²

z = t⁴

Comparing with Q = (-1, 6, 16), we see that none of the coordinates match. Therefore, point Q does not lie on the path of r(t).

So, the correct statement is:

Point P lies on the path of r(t).

Point Q does not lie on the path of r(t).

How to the vector parametrization of line?

To find a vector parametrization of the line through P = (3, 7, 4) in the direction v = (7, -8, 4), we can use the point-direction form of a parametric equation for a line:

r(t) = P + t * v

Substituting the values of P and v, we get:

r(t) = (3, 7, 4) + t * (7, -8, 4)

So the vector parametrization of the line is:

x = 3 + 7t

y = 7 - 8t

z = 4 + 4t

Lean more about parametric equations

brainly.com/question/28537985

#SPJ11

what is the geometry of this fold? A. overturned B. inverted C. asymmetric D. symmetric

Answers

The geometry of the fold is asymmetric.

The term "geometry of the fold" refers to the spatial arrangement or shape of a fold in rock layers. In this case, the fold is described as asymmetric. This means that the fold does not exhibit symmetry or balance in its shape, and one limb of the fold is steeper or has a different shape compared to the other limb.

The term "asymmetric" in geology typically refers to folds that have limbs with different angles of inclination or curvature. Therefore, based on the given options, the correct answer is "C. asymmetric."

Therefore, the correct answer is: A. asymmetric

To learn more about geometry here:

brainly.com/question/11298860#

#SPJ11

The geometry of the fold is asymmetric.

The term "geometry of the fold" refers to the spatial arrangement or shape of a fold in rock layers. In this case, the fold is described as asymmetric. This means that the fold does not exhibit symmetry or balance in its shape, and one limb of the fold is steeper or has a different shape compared to the other limb.

The term "asymmetric" in geology typically refers to folds that have limbs with different angles of inclination or curvature. Therefore, based on the given options, the correct answer is "C. asymmetric."

Therefore, the correct answer is: A. asymmetric

To learn more about geometry here:

brainly.com/question/11298860#

#SPJ11

what is 3(2/5) Witten in as column vector

Answers

The column vector of the expression is 6/5.

What is a column vector?

A column vector  is an entity or matric with single column of entries.

Column vectors can be added and subtracted from each other, multiplied by a scalar, and transformed by matrices. They are also used to represent systems of linear equations.

The column vector of the expression is calculated as follows;

3 ( 2/5 ) = ( 3 x 2 )/ 5

= 6/5

Thus, by multiplying the fraction by 3 we have successfully converted the expression into a single vector.

Learn more about column vector here: https://brainly.com/question/21807172

#SPJ1

(1 point) Are the following statements true or false? 1. The orthogonal projection p of y onto a subspace W can sometimes depend on the orthogonal basis for W used to compute p ? 2. If the columns of an n x p matrix U are orthonormal, then UUTy is the orthogonal projection of y onto the column space of U 3. For each y and each subspace W, the vector y - projw(y) is orthogonal to W. 4. If z is orthogonal to uz and u2 and if W = span(ui, u2), then z must be in W. ? 5. If y is in a subspace W, then the orthogonal projection of y onto W is y itself.

Answers

The first statement is false  2) true 3) true 4) false 5) true

The orthogonal projection p of y onto a subspace W does not depend on the orthogonal basis for W used to compute p, as the projection is unique.

1. False. The orthogonal projection p of y onto a subspace W does not depend on the orthogonal basis for W used to compute p, as the projection is unique.

2. True. If the columns of an n x p matrix U are orthonormal, then UUTy is indeed the orthogonal projection of y onto the column space of U.

3. True. For each y and each subspace W, the vector y - projw(y) is orthogonal to W, as this is the property of orthogonal projections.

4. False. If z is orthogonal to u1 and u2, and W = span(u1, u2), it implies that z is orthogonal to W, not that z must be in W.

5. True. If y is in a subspace W, then the orthogonal projection of y onto W is y itself, as y is already in the subspace and doesn't need to be projected.

learn more about orthogonal projection

https://brainly.com/question/2292926

#SPJ11

I NEED HELP ON THIS ASAPP!!!!!

Answers

a. The transformation for C > 0, f(x) is h(x) shifted C units to the right.

b. The transformation for C < 0, f(x) is h(x) shifted C units to the left.

What is a transformation?

Transformation is a mathematical operation performed to change the shape, size or orientation of a graph or object.

Since we have the basic function h(x) = 2ˣ, we want to describe the functions. We proceed as folllows.

a. To compare f(x) = h(x - C) to the basic function for C > 0, we see that

f(x) = h(x - C)

[tex]f(x) = 2^{x - C}[/tex]

Now, for C > 0, f(x) is h(x) shifted C units to the right.

So,  f(x) is h(x) shifted C units to the right.

b. To compare f(x) = h(x - C) to the basic function for C > 0, we see that

f(x) = h(x - C)

[tex]f(x) = 2^{x - C}[/tex]

Now, for C < 0,

[tex]f(x) = 2^{x - (-C)}\\f(x) = 2^{x + C}[/tex]

So, for C < 0, f(x) is h(x) shifted C units to the left.

So,  f(x) is h(x) shifted C units to the left.

Learn more about transformation here:

https://brainly.com/question/29788009

#SPJ1

Consider are linearly independent solutions on of a linear homogenous order differential equation.The objective is to determine whether the set of solution is linearly dependent or not.

Answers

To determine whether a set of solutions for a linear homogeneous differential equation is linearly dependent or not, follow these steps:

1. Identify the given solutions: Let's assume the given solutions are y1(t), y2(t), ..., yn(t).

2. Create the Wronskian: The Wronskian is a determinant used to test the linear dependence of solutions. For n solutions, it is an n x n determinant with the ith row containing the ith derivative of the solutions for i = 0, 1, ..., n-1.

3. Compute the Wronskian: Evaluate the determinant by following the standard methods for calculating determinants, such as cofactor expansion or row reduction.

4. Determine linear dependence: If the Wronskian is identically zero (i.e., it is zero for all values of t), then the set of solutions is linearly dependent. If the Wronskian is nonzero for at least one value of t, the set of solutions is linearly independent.

By following these steps, you can determine if the given set of solutions for a linear homogeneous differential equation is linearly dependent or linearly independent.

To know more about "Homogeneous" refer here:

https://brainly.com/question/28303206#

#SPJ11

Complete the square to re-write the quadratic function in vertex form

Answers

Answer:

to express the quadratic equetion in to factor form

you must use completing squere method

[tex] y= {x}^{2} - 10x - 5[/tex]

y + 5 = x2 - 10x

y + 5 = x2 - 10xy + 5 + 25 = x2 - 10x + 25

y + 5 = x2 - 10xy + 5 + 25 = x2 - 10x + 25y + 30 = (x - 5)2

y + 5 = x2 - 10xy + 5 + 25 = x2 - 10x + 25y + 30 = (x - 5)2 y = ( x - 5)2 - 30 so we get the factor form of the quadratic equetion.

In other way :

if you need to get vertex (5, -30)

or simply by (x, f(x)) which is (-b/2a,f(-b/2a)) form

a=1

a=1b=-10

a=1b=-10c=-5

so when u substitute and you will get (5, f(5))

then for the y-coordinate you substitute 5 in place of x and you will get -30 so vertex = (5, -30)

Compostie surface area. Please and thank you.

Answers

Therefore surface area of given is 331.63square yards.

Define surface area of cuboid?

A cuboid's total surface area is equal to the sum of all of its faces' surface areas. Given that a cuboid has six faces, the formula for its total surface area is as follows:

Cuboid's total surface area is equal to 2(lb + bh + hl).

where the cuboid's length (l), width (b), and height (h) are all integers.

Surface area of the given picture  =  Total surface area of cuboid - Curved surface area of base of hemisphere + curved surface area of hemisphere

=  2(lb+bh+hl) - πr²+ 2πr²

=  2(lb+bh+hl) + πr²

=  2 (36+60+60) + 3.14(2.5)²

=  2 (36+60+60) + 3.14(2.5)²

=  312 + 19.625

=  331.63 square yards.

To know more about surface area visit:

brainly.com/question/2835293

#SPJ1

PLEASE HELP I'LL GIVE BRAINLIEST PLEASEEE

Answers

The values are:

N = 25*12 = 300 (total number of payments)1% = 0.01 (monthly interest rate)PV = $295,000 (present value or principal)PMT = $1,639.71 (monthly payment)P/Y = 12 (payments per year)C/Y = 12 (compounding periods per year)

How to solve for interest

To calculate the interest saved by the extra payment, we need to compare the total interest paid with and without the extra payment. We can start by calculating the various parameters of the mortgage:

N = 25*12 = 300 (total number of payments)

1% = 0.01 (monthly interest rate)

PV = $295,000 (present value or principal)

PMT = $1,639.71 (monthly payment)

P/Y = 12 (payments per year)

C/Y = 12 (compounding periods per year)

Using the above values, we can calculate the total interest paid over the 25-year period without the extra payment:

interest= (PMT * N) - PV

Total interest paid = ($1,639.71 * 300) - $295,000

Total interest paid = $170,313.65

Read more on amortization here:https://brainly.com/question/10561878

#SPJ1

1. Which set of side lengths COULD be a RIGHT TRIANGLE?
A. 6, 11, 15
B. 7, 20, 28
C. 9, 40, 41
D. 12, 30, 39

Answers

The set of side lengths that COULD be a RIGHT TRIANGLE is C. 9, 40, 41. This set of side lengths satisfies the Pythagorean Theorem, which states that in a right triangle, the square of the length of the hypotenuse (the longest side) is equal to the sum of the squares of the lengths of the other two sides.

Step 3: Find how many 13 segments fit in 53.

Answers

There are 4 segments of 13 that fit in 53 with a remainder of 1.

To find out how many 13 segments fit in 53, we can use division. To find how many 13 segments fit in 53, we need to divide 53 by 13. We divide 53 by 13, and the quotient will give us the number of 13 segments that fit completely in 53. The remainder will tell us how many units are left over.

53 ÷ 13 = 4 with a remainder of 1

Therefore, there are 4 segments of 13 that fit completely in 53 with 1 unit left over.

Learn more about segments

https://brainly.com/question/28322552

#SPJ4


Complete Question:

Find how many 13 segments fit in 53.

The US National Center for Health Statistics estimates mean weights of Americans by age, height, and sex. Forty U.S. women, 5 ft 4 in. tall and age 18-24, are randomly selected and it is found that their average weight is 136.88 lbs. Assuming the population standard deviation of all such weights is 12.0 lb, determine
a. a 95% confidence interval for the mean weight :, of all U.S. women 5 ft 4 in. tall and in the age group 18-24 years.
b. a 70% confidence interval for the mean weight :, of all U.S. women 5 ft 4 in. tall and in the age group 18-24 years.
c. Interpret your answer in part (b).

Answers

(a) 136.88 ± 3.71

(b) 136.88 ± 2.02

(c) The 70% confidence interval is narrower than the 95% confidence interval.

What are the confidence intervals for the weight of U.S. women ?

a. To calculate a 95% confidence interval for the mean weight of all U.S. women who are 5 ft 4 in. tall and in the age group 18-24 years, we can use the formula for a confidence interval for the mean:

Confidence interval = sample mean ± critical value * (standard deviation / square root of sample size)

The critical value for a 95% confidence interval for a normally distributed population is 1.96. Given that the sample mean is 136.88 lbs, the standard deviation is 12.0 lbs, and the sample size is 40, we can plug in these values to calculate the confidence interval:

Confidence interval = 136.88 ± 1.96 * (12.0 / sqrt(40))

Confidence interval = 136.88 ± 3.71

So the 95% confidence interval for the mean weight of all U.S. women who are 5 ft 4 in. tall and in the age group 18-24 years is (133.17 lbs, 140.59 lbs).

b. To calculate a 70% confidence interval, we can use the same formula, but with a different critical value. The critical value for a 70% confidence interval for a normally distributed population is 1.04. Plugging in the given values:

Confidence interval = 136.88 ± 1.04 * (12.0 / sqrt(40))

Confidence interval = 136.88 ± 2.02

So the 70% confidence interval for the mean weight of all U.S. women who are 5 ft 4 in. tall and in the age group 18-24 years is (134.86 lbs, 138.90 lbs).

(c) The interpretation of the 70% confidence interval for the mean weight of U.S. women aged 18-24 and 5 ft 4 in. tall is that it is narrower than the 95% confidence interval, indicating a higher level of certainty (70% confidence) that the true population mean weight falls within the narrower range of (134.86 lbs, 138.90 lbs), compared to the wider range of (133.17 lbs, 140.59 lbs) in the 95% confidence interval. This means that as the confidence level decreases, the confidence interval becomes narrower, providing a more precise estimate of the true population mean. However, a lower confidence level also implies a higher risk of the true population mean falling outside the narrower confidence interval."

Learn more about Confidence Interval

brainly.com/question/29680703

#SPJ11

Write the equations in cylindrical coordinates.
(a) 2x^(2) − 4x + 2y^(2) + z^(2) = 9
(b) z = 5x^(2) − 5y^(2)

Answers

The following parts can be answered by the concept of Cylindrical equation.

a. Cylindrical equation for (a) is: 2r² × cos²(θ) - 4r × cos(θ) + 2r² × sin²(θ) + z² = 9.

b. Cylindrical equation for (b) is: z = 5r² × cos²(θ) - 5r² × sin²(θ).

the given Cartesian equations to cylindrical coordinates.

(a) To convert 2x² − 4x + 2y² + z² = 9 to cylindrical coordinates, we use the following relationships:
x = r × cos(θ)
y = r × sin(θ)
z = z

Substituting these relationships into the equation, we get:
2(r × cos(θ))² - 4(r × cos(θ)) + 2(r × sin(θ))² + z² = 9

Simplifying the equation, we get:
2r² × cos²(θ) - 4r × cos(θ) + 2r² × sin²(θ) + z² = 9

Your cylindrical equation for (a) is: 2r² × cos²(θ) - 4r × cos(θ) + 2r² × sin²(θ) + z² = 9.

(b) To convert z = 5x² − 5y² to cylindrical coordinates, we use the same relationships as before. Substituting them into the equation, we get:
z = 5(r × cos(θ))² - 5(r × sin(θ))²

Simplifying the equation, we get:
z = 5r² × cos²(θ) - 5r² × sin²(θ).

Your cylindrical equation for (b) is: z = 5r² × cos²(θ) - 5r² × sin²(θ).

Therefore,

a. Cylindrical equation for (a) is: 2r² × cos²(θ) - 4r × cos(θ) + 2r² × sin²(θ) + z² = 9.

b. Cylindrical equation for (b) is: z = 5r² × cos²(θ) - 5r² × sin²(θ).

To learn more about Cylindrical equation here:

brainly.com/question/30591117#

#SPJ11

The following parts can be answered by the concept of Cylindrical equation.

a. Cylindrical equation for (a) is: 2r² × cos²(θ) - 4r × cos(θ) + 2r² × sin²(θ) + z² = 9.

b. Cylindrical equation for (b) is: z = 5r² × cos²(θ) - 5r² × sin²(θ).

the given Cartesian equations to cylindrical coordinates.

(a) To convert 2x² − 4x + 2y² + z² = 9 to cylindrical coordinates, we use the following relationships:
x = r × cos(θ)
y = r × sin(θ)
z = z

Substituting these relationships into the equation, we get:
2(r × cos(θ))² - 4(r × cos(θ)) + 2(r × sin(θ))² + z² = 9

Simplifying the equation, we get:
2r² × cos²(θ) - 4r × cos(θ) + 2r² × sin²(θ) + z² = 9

Your cylindrical equation for (a) is: 2r² × cos²(θ) - 4r × cos(θ) + 2r² × sin²(θ) + z² = 9.

(b) To convert z = 5x² − 5y² to cylindrical coordinates, we use the same relationships as before. Substituting them into the equation, we get:
z = 5(r × cos(θ))² - 5(r × sin(θ))²

Simplifying the equation, we get:
z = 5r² × cos²(θ) - 5r² × sin²(θ).

Your cylindrical equation for (b) is: z = 5r² × cos²(θ) - 5r² × sin²(θ).

Therefore,

a. Cylindrical equation for (a) is: 2r² × cos²(θ) - 4r × cos(θ) + 2r² × sin²(θ) + z² = 9.

b. Cylindrical equation for (b) is: z = 5r² × cos²(θ) - 5r² × sin²(θ).

To learn more about Cylindrical equation here:

brainly.com/question/30591117#

#SPJ11

A spring table arrangement of 30 flowers contains only two kinds of flowers,
daffodils and tulips. The number of tulips, t, is one-fourth the number of
daffodils. Write an equation that represents the relationship between the
number of tulips and the number of daffodils in the arrangement.

Answers

Answer:

t = (1/4)d

or

t/d = 1/4

Step-by-step explanation:

t = number of tulips

d = number of daffodils

t = (1/4)d

or

t/d = 1/4

t + d = 30

so, when using the first equation in the second we get

(1/4)d + d = 30

multiplying both sides by 4 to get rid of the fraction :

d + 4d = 120

5d = 120

d = 24

t = (1/4)d = 1/4 × 24 = 6

find the area of the shaded region

SHOW YOUR SOLUTION

Answers

Answer:

1. 15.72m²

2. 48dm²

3. 4m²

Step-by-step explanation:

1.

area of unshaded circle=

r=3m. πr^2. (22/7)×3×3= 28.29

area of shaded circle

radius= total radius- unshaded circle radius

r=5m-3m = 2m

Area= πr^2. (22/7)×2×2= 12.57

therefore area= unshaded-shaded

28.29-12.57= 15.72

2.

area of unshaded= area of square = L²

8×8=64

area of shaded= length= 8-2-2= 4

4×4= 16

total area =

64-16= 48

3.

area of triangle= (b×h)/2

(7×6)/2= 42/2= 12

area of rectangle= L×b

4×2= 8

area=12-8= 4

I NEED HELP ON THIS ASAP!!!!

Answers

In the two functions as the value of V(x) increases, the value of W(x) also increases.

What is the value of the functions?

The value of functions, V(x) and W(x) is determined as follows;

for h(-2, 1/4); the value of the functions is calculated as follows;

v(x) = 2ˣ ⁺ ³ = 2⁻²⁺³ = 2¹ = 2

w(x) = 2ˣ ⁻ ³ = 2⁻²⁻³ = 2⁻⁵ = 1/32

for h(-1, 1/2); the value of the functions is calculated as follows;

v(x) = 2ˣ ⁺ ³ = 2² = 4

w(x) = 2ˣ ⁻ ³ = 2⁻⁴ = 1/16

for h(0, 1); the value of the functions is calculated as follows;

v(x) = 2ˣ ⁺ ³ = 2³ = 8

w(x) = 2ˣ ⁻ ³ = 2⁻³ = 1/8

for h(1, 2); the value of the functions is calculated as follows;

v(x) = 2ˣ ⁺ ³ = 2⁴ = 16

w(x) = 2ˣ ⁻ ³ = 2⁻² = 1/4

for h(2, 4); the value of the functions is calculated as follows;

v(x) = 2ˣ ⁺ ³ = 2⁵ = 32

w(x) = 2ˣ ⁻ ³ = 2⁻¹ = 1/2

Learn more about functions here: brainly.com/question/10439235

#SPJ1

2. Using 3.14 as a value of n, find the approximate volume of each sphere below. Round to
the nearest cubic inch.
a)
4 in
Like
example 1
b)
12 in

Answers

Answer:

a: 268 [tex]in^{3}[/tex]

b: 904 [tex]in^{3}[/tex]

Step-by-step explanation:

Volume of a sphere: [tex]\frac{4}{3} \pi r^3[/tex]

a: [tex]\frac{4}{3} (3.14)(4)^3[/tex] = 267.95

b: r = 12/2 = 6

  [tex]\frac{4}{3} (3.14)(6)^3[/tex] = 904.32

what is the range of 2 3 5 4 3 6 4 3. 56 6 5 4

Answers

For the sequence 2 3 5 4 3 6 4 3. 56 6 5 4:

The minimum number is 2

The maximum number is 6

The range is 6 - 2 = 4

So the range of the sequence 2 3 5 4 3 6 4 3. 56 6 5 4 is 4.

17. The perimeter of a rectangle is 86 centimeters. The length is 2 centimeters longer than the
width, w. What is the width?
White an equation that could be used to find the width of the rectangle.

Answers

According to the problem, the length is 2 centimetres longer than the width, so the length can be expressed as:

l = w + 2

length = width + 2

The perimeter of a rectangle is twice the sum of its length and width, so we can set up an equation to represent the perimeter given in the problem:

P = 2(l + w)

Substituting the expression for l in terms of w, we get:

P = 2((w + 2) + w)

Simplifying this expression, we get:

P = 2(2w + 2)

P = 4w + 4

We know that the perimeter of the rectangle is 86 centimetres, so we can substitute this value into the equation:

86 = 4w + 4

Subtracting 4 from both sides:

82 = 4w

Dividing both sides by 4:

w = 20.5

Therefore, the width of the rectangle is 20.5 centimetres.

The equation that could be used to find the width of the rectangle is:

4w + 4 = 86

where w represents the width of the rectangle in centimetres.

perimeter = 2L + 2w

so 86 = 2L + 2w

if the length is 2cm longer than the width, that means w+2=L

plug this back into our original equation to get 2(w+2) + 2w = 86

distribute terms to get 4w + 4 = 86

4w = 82

w = 20.5cm

How to solve this? (Ans: X= 5, y=8)​

Answers

In the given equation, [tex]\frac{(a^x)^{2}}{b^{5-x}} \times \frac{b^{y - 4}}{a^{y}} = a^2b^4[/tex], the value of x and y is x = 5 and y = 8

Simultaneous equations: Calculating the value of x and y

From the question, we are to determine the value of x and y in the given equation.

The given equation is

[tex]\frac{(a^x)^{2}}{b^{5-x}} \times \frac{b^{y - 4}}{a^{y}} = a^2b^4[/tex]

To determine the value of x and y, we will simplify the left hand side of the equation and then compare to the right hand side of the equation

The equation can written as

[tex]\frac{(a^x)^2}{a^{y}} \times \frac{b^{y - 4}}{b^{5-x}} = a^2b^4[/tex]

[tex]\frac{(a^{2x})}{a^{y}} \times \frac{b^{y - 4}}{b^{5-x}} = a^2b^4[/tex]

[tex]a^{2x - y}\times b^{y - 4 -(5-x) = a^2b^4[/tex]

Simplify

[tex]a^{2x - y}\times b^{y - 4 -5+x = a^2b^4[/tex]

[tex]a^{2x - y}\times b^{x+y - 9} = a^2b^4[/tex]

By comparison

[tex]2x - y = 2\\x + y - 9 =4[/tex]

Thus,

2x - y = 2

x + y = 4 + 9

and

2x - y = 2

x + y = 13

Solve the equations simultaneously

2x - y = 2

x + y = 13

Adding the two equations, we get:

3x = 15

Dividing both sides by 3, we get:

x = 5

Substituting this value of x into the second equation, we get:

5 + y = 13

Subtracting 5 from both sides, we get:

y = 8

Hence, the solution is:

x = 5, y = 8

Learn more on Simultaneous equations here: https://brainly.com/question/148035

#SPJ1

Find two consecutive integers such that five times the first is equal to six times the second

Answers

The two consecutive integers are -6 and -5

What are algebraic expressions?

Algebraic expressions are defined as expressions that are composed of coefficients, terms, variables, constants and factors.

Algebraic expressions are also made up of mathematical operations, such as;

AdditionBracketParenthesesSubtractionMultiplicationDivision

From the information given;

Let the consecutive integers

x and x + 1

Then, we get;

5x = 6(x + 1)

expand the bracket

5x = 6x + 6

collect the like terms

-x = 6

x = -6

x + 1 = -6 + 1 = -5

Learn more about algebraic expressions at: https://brainly.com/question/4344214

#SPJ1

4. Find the length of arc s.
7 cm
0
02 cm.
5 cm

Answers

The length of the arc s as required to be determined in the task content is; 17.5 cm.

What is the length of the arc s?

It follows from the task content that the length of the arc s is to be determined from the given information.

By observation, the angle subtended at the center of the two concentric circles is same for the 2cm and 5 cm radius circles.

Therefore, it follows from proportion that the length of an arc is directly proportional to the radius of the containing circle.

Therefore, the ratio which holds is;

s / 5 = 7 / 2

s = (7 × 5) / 2

s = 17.5 cm.

Ultimately, the length of the arc s is; 17.5 cm.

Read more on length of an arc;

https://brainly.com/question/28108430

#SPJ1

If a device shows that a place has high humidity but there are not clouds in the sky you can say that is because a. the temperature is at its minimum b. the temperature is too cold c. the temperature is too warm
d. the temperature is cooling off

Answers

Correct answer is c. the temperature is too warm When the temperature is warm, it can cause a higher rate of evaporation, which increases humidity.

Describe why this statement is right?

If a device shows that a place has high humidity but there are no clouds in the sky, you can say that it is because the temperature is too warm. High humidity occurs when the air is holding a lot of moisture, and warm air can hold more moisture than cool air.

As the temperature rises, the air can hold more and more moisture until it reaches a point where it becomes saturated, leading to high humidity. Therefore, if there are no clouds in the sky, it is likely that the temperature is high and causing the high humidity reading.

Learn more about evaporation.

brainly.com/question/320765

#SPJ11

the sum of two consecutive odd numbers is 56. find the numbers

Answers

Answer:

27  , 29

Step-by-step explanation:

Consecutive odd numbers means that, if the lesser number is denoted by the variable, x, that the given equation is:

[tex](x) + (x + 2) = 56[/tex]

Solve. First, combine like terms, then isolate the variable, x:

[tex]x + x + 2 = 56\\(x + x) + 2 = 56\\2x + 2 = 56[/tex]

Do the opposite of PEMDAS. PEMDAS is the order of operations, and stands for:

Parenthesis

Exponents (& Roots)

Multiplications

Divisions

Additions

Subtractions

~

First, subtract 2 from both sides of the equation:

[tex]2x + 2 = 56\\2x + 2 (-2) = 56 (-2)\\2x = 56 - 2\\2x = 54[/tex]

Next, divide 2 from both sides of the equation:

[tex]2x = 54\\\frac{(2x)}{2} = \frac{(54)}{2}\\ x = \frac{54}{2}\\ x = 27[/tex]

Next, solve for the consecutive odd number. Plug in 27 for x:

[tex](x) = 27\\(x) + 2 = (27) + 2 = 29[/tex]

Check. Add 27 with 29:

[tex]27 + 29 = 56\\56 = 56\\\therefore 27 , 29[/tex]

27 , 29 is your answer.

~

Learn more about solving consecutive numbers, here:

https://brainly.com/question/2493629

Find the length of the missing side

Answers

Answer:

1. 13 KM. 2. 3.43 KM

Step-by-step explanation:

For these questions, use A^2 + B^2 = C^2, with C being the hypotenuse.

12^2 + 5^2 = c^2

9.5^2 + b^2 = c^2

13 KM,

3.43 KM

which of the choices belowm follow an exponetial pattern?select all that apply

Answers

The options  that follow an exponential pattern are:

A.  Division of skin cells every half hour.

C. y = 4 * 3^(x)

How to find the exponential pattern?

An exponential function is defined as one which gradually increases or decreases by a constant rate.

A) Division of skin cells every half hour.

It will determine a exponential pattern since it could be represented in the form of:

y = ab^(x)

where:

a is the initial amount of skin cells and also the number of skin cells  decreases by a constant rate in every half hour.

Thus, option: A is correct.

B) y = x²

It is not a exponential function.

It is a quadratic function.

Thus, option: B is incorrect.

C) y = 4 * 3^(x)

It is a exponential function.

Since it is represented in the form of:

y = ab^(x)

Thus, option: C is correct.

D) From the given table we could see that this represent a linear function and not exponential since the values are increasing by a fixed rate i.e. 3

Thus, option D is incorrect.

E) You are driving at a constant rate of 55 mph.

This situation will represent a linear function or we may say a constant function.

Thus, option E is incorrect.

F) y = 2x³

It represent a cubic function and not exponential.

Hence, option: F is incorrect.

Read more about exponential form at: https://brainly.com/question/31501021

#SPJ1

On analyzing a function, Jarome finds that f(a)=b . This means that the graph of f passes through which point?

Answers

Answer: (a, b)

Step-by-step explanation:

the notation f(x) = .... refers that plugging "x" into the function gives us a value which we call "f(x)". so the "plugged in" value is a, and the "spit out
value is b. So in terms of points, (x,y), it will be (a,b)

-2a^(6)-8a^(3)b-8b^(2) write as a product

Answers

To write an expression as product means write a number as product of other. The product form of expression -2a⁶ - 8a³b - 8 b² is equals to the -2( a⁶ + 4a³b + b² ).

When we multiply two numbers, the resultant is called the product. For example the product of 3and 5" means "3 x 5" or 15. To write an expression as a product of its factors is called factorization. As we know each product of a number is obtained by multiplying it by any other number. We have an expression, -2a⁶ - 8a³b - 8 b². It is a trinomial because it contains three distinct terms. We have to write it as a product form. For this, we have to try to make factor of the numbers. Factors of first term, - 2a⁶ = -2× a× a×a× a× a× a

Factors of second term, -8a³b = -2×-2 × -2 × a×a×a×b

Factors of second term, -8b² = -2×-2 × -2 × b×b

The common factor in terms = - 2. So, pull out the common factor from expression, we can rewrite the expression as -2( a⁶ + 4a³b + b² ). Hence, required value is -2( a⁶ + 4a³b + b² ). For more information about product, visit :

https://brainly.com/question/28782029

#SPJ4

Other Questions
A large plate subjected to pure shear xy=S at remote boundaries contains a rigid circular inclusion in the region r During the last year Alpha Co had Net Income of $150, paid $20 in dividends, and sold new stock for $40. Beginning equity for the year was $700. Ending Equity was:a.$850.b.$840.c.$830.d.$870. What is most closely the definition of convention as it is used in the passage below (paragraph 4)? HELP ASAP DUE IN A HOURWriters of the period also sought freedom from conventions, experimenting with style and form to reach the sublime with their audience. European Romantic writers include Samuel Taylor Coleridge, John Keats, and William Wordsworth, who was especially focused on the idea of the sublime.Answer choices for the above questionA. noun | an established way a certain thing is typically doneB. noun | a large meeting or conference organized for a purposeC. noun | an agreement between parties or statesD. noun | in U.S. politics, a gathering of people to nominate a candidate for office An airplane passenger has 120 cm3 of air in his stomach just before the plane takes off from a sea-level airport. What volume, in cubic centimeters, will the air have at cruising altitude at the same temperature (body temperature) if cabin pressure drops to 7.50 104 Pa and no air leaves their stomach? On January 1, Boston Company completed the following transactions (use a 7% annual interest rate for all transactions): (FV of $1, PV of $1, FVA of $1, and PVA of $1) (Use the appropriate factor(s) from the tables provided.) Promised to pay a fixed amount of $6,800 at the end of each year for seven years and a one-time payment of $116,600 at the end of the 7th year. Established a plant remodeling fund of $491,200 to be available at the end of Year 8. A single sum that will grow to $491,200 will be deposited on January 1 of this year. Agreed to pay a severance package to a discharged employee. The company will pay $75,800 at the end of the first year, $113,300 at the end of the second year, and $150,800 at the end of the third year. Purchased a $174,000 machine on January 1 of this year for $34,800 cash. A five-year note is signed for the balance. The note will be paid in five equal year-end payments starting on December 31 of this year.1. In transaction (a), determine the present value of the debt. (Round your answer to nearest whole dollar.)2-a. In transaction (b), what single sum amount must the company deposit on January 1 of this year? (Round your answer to nearest whole dollar.)2-b. What is the total amount of interest revenue that will be earned? (Round your answer to nearest whole dollar.)3. In transaction (c), determine the present value of this obligation.4-a. In transaction (d), what is the amount of each of the equal annual payments that will be paid on the note?4-b. What is the total amount of interest expense that will be incurred? What happened to Germany during the great depression that made things worse for people #1. Are you ready? Before you create a fitness plan for yourself, make sure to follow any recommendations provided by your health care provider. If your provider has advised you not to participate in physical activity or you don't feel comfortable sharing personal health goals, please complete this activity as a hypothetical fitness plan. Have you been or are you planning on being advised by your doctor before participating in a fitness plan? which work center is of greatest concern to the operations manager? part 2 a. work center z b. work center y c. work center x d. work center w A container holds a gas consisting of 5.75 moles of oxygen molecules. One in a million of these molecules has lost a single electron. NA=6.0221023mol1 , e=1.601019C.What is the net charge of the gas?Express your answer to three significant figures and include the appropriate units. How many prize winning opportunities are there in the course of the year? RULES AND REWARDS OF THE 200 CLUB1.There shall be no more than 200 members at any one time2.Each member shall pay an annual subscription of 12 viz 1 per calendar month3.Draws shall take place regularly as follows and the prizes be distributed accordingly. Each member card shall continue to remain valid for one whole year, irrespective of whether it has already won a prize during that year.Monthly draws: First prize 15 Second prize 5 Main prize 20Annual Grand draw: First prize: 50 Second prize: 30 a company recorded an event that increased total assets and net income, but had no affect on cash flow. this event could have been a result of , The name for the material used to surround anodes in their bed?A) ChlorideB) SulfateC) Chemical BackfillD) acidic compounds We need to achieve 85% FEATURE DESIRABILITY. FEATURE DESIRABILITY is a measure of how well your backpack design aligns with your segment's PREFERENCES. Which of the following is the most important CHARACTERISTIC for the OUTDOOR ENTHUSIAST segment?a. Capacity Comfortb. Durabilityc. Eco-Friendly Pension funds are primarily interested in investing in venture capital because:a) They want to create more jobs in their stateb) They want to increase the overall intellectual property of the United Statesc) Over the past ten years pension fund returns have exceeded the minimum amount of returns they need to pay their pension obligations.d) Over the past ten years pension fund returns have been less than the minimum amount of returns they need to pay their pension obligations.e) The stock market has returned in excess of 12% in 2017. earthquakes, landslides, and volcanic eruptions that occur beneath the sea may generate a large sea wave calle Give a recursive definition of the sequence An, n=1,2,3,... if: Recursive Form Basis A) An 4n-2 An = An-1+ 4 Ao B) An n(n+1) An = An-1+ Ao C) An = 1+(-1)" An An-2t Ao A1 = D) An = n2 An = An-1+ Sallie Thorp, a 21-year-old patient, presents to the physicians office with an asthma action plan form she acquired from a literature search on the World Wide Web at http://www.nhlbi.nih.gov/health/public/lung/asthma/asthma_actplan.pdf (Links to an external site.). She states that she would like to develop the plan with the help of the nurse and physician and review it at each appointment to keep it current. She has had moderate persistent asthma for 5 years, and she has visited the emergency department several times in the past year with severe asthma attacks. She stated that she forgets to take her medications, because the medications are at times that the hospital provided the inhalers (12 noon and midnight), and she gets confused on which inhalers are the long-acting ones and which inhaler is the short-acting rescue inhaler she is supposed to use when she has an exacerbation. She stated that if she could, she would like to take the inhalers at 8 am and again at 8 pm. The patient stated that she has a flow meter and that a respiratory therapist at the hospital taught her how to use it in the past, and he wrote down her personal best peak flow, which is 400 L/sec. The nurse reviews the patients medical chart and discovers that she has been prescribed the following from todays visit: Use albuterol (Proventil): 2 to 4 puffs every 20 minutes for up to 1 hour as rescue inhaler. If symptoms improve, then take the inhaler every 4 hours for 1 to 2 days. If no improvement after 2 days, call the physician Salmeterol (Serevent): 50 mcg every 12 hours Fluticasone (Flovent): 88 mcg or 2 puffs every 12 hours Cromolyn sodium (Nasalcrom): one spray to each nostril once daily and before being exposed to known asthma triggers. You may use the spray up to every 4 hours Measure peak flow meter every morning before using inhalers and record. Use peak flow meter, as needed, if you develop symptoms, such as cough, shortness of breath, wheezing, chest tightness; use of neck and chest muscles to breathe; problems talking or walking because of extreme shortness of breath Follow-up in 3 months Have the nurse provide education on asthma self-management and fill out the action plan that the patient brought with her today and have the physician review it and sign it The nurse also notes that the medications have not changed from the last visit. Explain the medications to the patient and practice filling in the asthma action plan. why should a service departments budgeted costs, rather than its actual costs, be charged to operating departments? Which answer describes the transformation of f(x)=x^21 tog(x)=(x+4)^21 ?A. a vertical stretch by a factor of 4B. a horizontal translation 4 units to the leftC. a vertical translation 4 units downD. a horizontal translation 4 units to the right Use the method of your choice to evaluate the following limit 1-cos y / 2xy Select the correct choice and, if necessary, fill in the answer box to complete your choice.a. Lim (xy)-(2,0) 1-cos y / 2xy2 = (Type an integer or a simplified fraction.) B. The limit does not exist.