If the straight line that passes through (2, 1) and (5, 7) is drawn accurately,
it passes through the point (20, y).
What number does y stand for?


The point (x, 21) lies on the same line.
What number does x stand for?

Answer:

C) 0.1666

Step-by-step explanation:

The probability of selecting a calculator that is defective can be defined as: [tex]\frac{46}{46+26}[/tex]

The 46 in the numerator is the number of calculators that are defective in the group. The 46 + 26 represents the total amount of calculators since 46 are defective and 26 are not defective and assuming a calculator can only be defective or not defective then these are the total number of calculators in the group.

This gives you a probability of approximately: [tex]\frac{46}{72}[/tex] or approximately 0.638889

We can multiply independent events to find the combined probability of these events occurring. So we have to assume you put the calculator back into group after selecting one.

If this is the case we simply multiply 46/72 * 46/72 * 46/72 * 46/72 or (46/72)^4 to get an approximate probability of: 0.1666

Answer:

42

Step-by-step explanation:

76-34

the height and width of her scale drawing is respectively:

height = 1*1/2inch

width = 3/4 inch

Dimension are the measure of the size or distance of an object or region or space in one direction.

so, all we needs to do is multiply is dimension of the original door image by the scale factor , to get the height and width of the scale drawing.

height:   3 inch x 1/2 =3x1/2=3/2=1x1/2 inch

width: 1x 1/2 inch x 1/2 =3/2 x 1/2= 3x1/2x2=3/4 inch

hence , the height and width of the scale drawing is respectively= 1x 1/2 inch ,3/4 inch

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The second term of the arithmetic sequence is:

a₂= -9

Here we have an arithmetic sequence, such the the recursive formula is:

aₙ = aₙ₋₁ + 4

So to get each term, we need to add 4 to the previous one.

We know that the first term is:

a₁ = -13

Then the second term will be:

a₂ = a₁ + 4 = -13 + 4 = -9

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The probability is 0.334 and the events are not disjoint​ events

The table of values represents the given parameters

The probability to calculate is given as

The probability of getting an order that is not accurate or is from Restaurant C

This can be represented as

P(Not accurate or Restaurant C)

This is calculated as

P(Not accurate or Restaurant C) = [n(Not accurate) + n(Restaurant C) - (Not accurate and Restaurant C)]/Total

So, we have

P(Not accurate or Restaurant C) = (37 + 52 + 34 + 19 +237 + 34 - 34)/(330 + 276 + 237 + 150 + 37 + 52 + 34 + 19)

Evaluate the sum and the difference

P(Not accurate or Restaurant C) = 379/1135

Evaluate the quotient

P(Not accurate or Restaurant C) = 0.334

Lastly, the events of selecting an order that is not accurate and selecting an order from Restaurant C are not disjoint​ events

This is so because it is possible to select an order from restaurant C that is not accurate

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Using the combination formula, it is found that:

a) There are 210 distinct ways to choose the problems.

b) The probability is of 0.1667 = 16.67%.

c) The probability is of 0.3333 = 33.33%.

[tex]C_{n,x}[/tex] gives the number of different combinations of x objects from a set of n elements, according by the following formula, involving factorials.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

The order in which the problems are chosen is not important, which is the reason for the use of the combination formula in this problem.

4 problems are chosen from a set of 10, hence the number of ways to choose the problems is given by:

[tex]C_{10,4} = \frac{10!}{4!6!} = 210[/tex]

The number of ways to choose 4 problems that she can solve is:

[tex]C_{7,4} = \frac{7!}{4!3!} = 35[/tex]

Hence the probability is:

p = 35/210 = 0.1667 = 16.67%.

For item c, the desired outcomes are as follows:

Hence the probability is:

p = (7 + 63)/210 = 70/210 = 0.3333.

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)

2) So, let's begin with the lower-left product of matrices:

Now for the next pair of matrices in the middle:

Notice that each row is multiplied by each correspondent column.

And finally, the pair on the lower-right:

) Thus, the se are theanswers .

This necklace sold at auction for $11,379,600 in 2011. The percentage of the initial purchase price was represented by the auction price is 2.1%.

Given that,

For $54,000, an actor purchased a pearl, diamond, and ruby necklace for his well-known wife. This necklace sold at auction for $11,379,600 in 2011.

We have to find what percentage of the initial purchase price was represented by the auction price.

Let us take the percentage as x%.

Necklace sold at auction=the percentage multiplied by the actual price

We get,

$11,379,600 =x%($54,000)

x%=$11,379,600/$54,000

x%=2.1%

Therefore, the percentage of the initial purchase price was represented by the auction price is 2.1%.

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Answer:

1/5,1/6,2/9,3/10

Step-by-step explanation:

hope it helps helps and have a nice day! :)

Answer:

  C.  One solution

Step-by-step explanation:

You want to know the number of solutions of a system of equation such that the graph of the linear function touches the graph of the quadratic function at its minimum.

The number of real solutions of the system of equations is equal to the number of points of intersection of their graphs. The problem statement tells you the graphs intersect at one point, so there is one solution.

__

Additional comment

The linear function can only touch the minimum of a quadratic if its graph is a horizontal line.

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Given:

v is the given vector.

To find:

Find the direction angle of v.

Formula to find the direction:

From the given vector x and y are:

The area of the pool given by the expression, ∆ × 102 + ∆ × 101 + 6, gives;

A) The whole number x = 33

B) The perfect square number closest to 33 is 36

The side length of a square pool with an area of 36 square units is 6 units

C) The side length of a square pool with the area chosen in part A is 33•√33

An expression is a mathematical statement which consists of 2 or more numbers and, or variables joined together by mathematical operators.

A) The given equations for the pool is presented as follows;

Area of the pool = ∆ × 102 + ∆ × 101 + 6

Area of the pool = x³

x = A whole number

Expressing the word problem mathematically gives;

∆ × 102 + ∆ × 101 + 6 = x³

203•∆ + 6 = x³

Which gives;

[tex] \displaystyle{ \triangle = \frac{ {x}^{3} - 6}{203} }[/tex]

Using a graphing calculator, when x = 33, we get;

[tex] \displaystyle{ \triangle = \frac{ {33}^{3} - 6}{203} = 177 }[/tex]

The value of the number is x = 33 and ∆ = 177

B) The perfect square that is closest to x = 33 is 36

The side length of a square pool with an area of 36 is √(36) = 6

C).The area of the pool chosen is 33³ = 35937

The side length of a square pool with an area of 35937 is √(35937) = 33•√(33)

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According to the solving the given data the values of :

Range = 12

Variance= 25

Standard deviation= 5

Data points' deviations from the mean are quantified by their variance. Layman defines variance as the degree to which a set of data (numbers) deviates from the mean (average) value. Finding the predicted difference between the deviation from the actual value and the variation.

In statistics, range is the distinction between the most and least values in a set. Mathematics' interval, also known as range, is a collection of real numbers that contains all values that fall between any two other values.

Given data: 3, 3, 5, 9, 12, 13, 15

Range  = Highest value  - lowest value

            = 15 - 3

            = 12

Mean of the given data:

xi = 3, 3, 5, 9, 12, 13, 15

n = 7

S² = ∑(xi  - x)²/(n - 1)

    = (30.25 + 30.25 + .25+ 12.25 + 20.25 + 42.25 + 12.25)/6

   = 147.75/6

   = 24.6

     = 25

Finding the standard deviation:

√S² = 25

S = 5

According to the solving the given data the values of :

Range = 12

Variance= 25

Standard deviation= 5

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The solution of B(x) = 18 - 0.5x with x being -2, 0, 5 is 19, 18 and 15.5.

Given:

B(x) = 18-0.5x

x = -2, 0, 5

Putting the values of x to find the result of the function.

B(-2) = 18 - 0.5 × (-2) = 18 + 1 = 19

The required solution of the function at x = -2 is f(-2) = 19.

B(0) = 18 - 0.5 × (0) = 18

The required solution of the function at x = 0 is f(0) = 18.

B(5) = 18 - 0.5 × (5) = 18 - 2.5 = 15.5

Thus, the required solution of the function at x = 5 is f(5) = 15.5.

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The complete question is :"How do you solve B(x) = 18-0.5x with x being -2, 0, 5."

The midpoint of the given points (11, 3) and (4, 3) on the coordinate plane is ( 15/2, 3 ).

A midpoint is simply a point that divides a line segment into two equal halves.

The midpoint formula is expressed as;

M = ( (x₁+x₂)/2, (y₁+y₂)/2 )

Given the data in the question;

Point 1( 11, 3 )

Point 2( 4, 3 )

Midpoint = ?

To find the midpoint, plug the given points into the midpoint formula above and simplify.

M = ( (x₁+x₂)/2, (y₁+y₂)/2 )

M = ( ( 11 + 4 )/2, ( 3 + 3 )/2 )

M = ( ( 15 )/2, ( 6 )/2 )

Midpoint M = ( 15/2, 3 )

Therefore, the midpoint of the given coordinates is ( 15/2, 3 ).

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The area of the parallelogram is 240 feet.

A parallelogram's area is the area that it occupies in a two-dimensional plane. A parallelogram is a four-sided, two-dimensional form in geometry. This particular quadrilateral example has equal and parallel opposite sides. The space bounded by a parallelogram's four sides is known as its area. A parallelogram's area is determined by multiplying its length by its height. 

A quadrilateral's interior angles add up to 360 degrees.

The area of a parallelogram can thus be written as :

Area = Base × Height

In this diagram it is given that the Base = 20 feet and the height = 12 feet

Thus the area can be obtained by simply multiplying these two dimensions

So area = 20 × 12 = 240 feet .

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The money would Stella have to pay in a month in which she downloaded 40 songs is $59.

The amount that she has to pay if she downloaded ss songs is 9 + 1.25s.

From the information, Stella signed up for a streaming music service that costs $9 per month and the service allows Stella to listen to unlimited music, but if she wants to download songs for offline listening, the service charges $1.25 per song.

The money would Stella have to pay in a month in which she downloaded 40 songs is:

= 9 + 1.25s

where s = number of songs

= 9 + 1.25s

= 9 + 1.25(40)

= 9 + 50

= $59.

The amount that she has to pay if she downloaded s songs is:

= 9 + 1.25(s)

= 9 + 1.25s

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3 is dividing on the right, then it will multiply on the left

B is multiplying on the right, then it will divide on the left

The value of f'(x) at x = 1 is 1 for first order derivative of x^x^3.

A derivative in calculus is the rate of change of a quantity y with respect to another quantity x. It is also termed the differential coefficient of y with respect to x. Differentiation is the process of finding the derivative of a function.

Given that, x^x^3 and we have to find the first order derivative with respect to x and then find the value at x = 1.

Let's proceed to solve this question accordingly.

let f(x) = x^x^3

The first order derivative = f'(x) = d/dx(x^x^3)

First apply the generalized power rule, then we have

= x^x^3.d/dx(ln(x)x^3)

Applying the power rule, we get

= x^x^3 (d/dx(x^3).ln(x)+x^3.d/dx(ln(x)))

= x^x^3 (3x^2 ln(x) +x^3.1/x)

= x^x^3 (3x^2ln(x) +x^2)

On simplifying, we will get

= x^x^3+2(3ln(x)+1)

f'(x) = d/dx(x^x^3) = x^x^3+2(3ln(x)+1)

Now, at x = 1, we get

f'(x) = d/dx(x^x^3) = x^x^3+2(3ln(x)+1) = 1

Therefore, f'(x) = d/dx(x^x^3) = x^x^3+2(3ln(x)+1) = 1 is the required answer.

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The property that completes the proof is the transitive property

From the question, we have the following parameters

The point C is the midpoint of AE

BC = CD

The above implies that

AC = CE

And it also means that:

The line segment BC and the line segment CD have equal lengths

According to the transitive property of equation, we have:

If A = B and B = C, then A = C

This can also be represented as

If A + B = C + D and C + D = E + F, then A  + B = E + F

Using the above as a guide, we have (in step 3)

AB + BC = AC

CD + DE = CE

This implies that

AB + BC = CD + DE

Hence, the statement that represents the reason 4 in the proof is (b) transitive property

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Angles opposite to shorter sides are shorter. Then, the shortest angle is opposed to the shortest side.

Since the shortest side has a length 2.8 and is opposed to the angle A, then the shortes angle is A.

The next shortest side is that opposite to B, which has a length of 3.4.

And finally, the largest side has a length of 4.7 and it's opposite to the angle C.

Therefore, the list of angles from largest to smallest, is:

Solution:

Given a sphere of diameter, d, 2.5ft.

To find the volume, V, of the sphere, the formula to apply is

Where, the radius, r, is

Substitute for r into the formula to find the volume of a sphere above

Hence, the volume, V, of the given sphere is 8.2 ft³ (the nearest tenth)

SOLUTION:

Step 1:

In this question, we are given the following:

Step 2:

he deatails of the solution are as follows:

rom tjhe triangle, we can see that Traingle KLM is an isosceles triangle, such that Angle J = 52.3 degrees suchn that:

Now, we have that:

ONCLSUSION:

The measure of Angle L =

The length of each side is less than sum of the lengths of the other two sides and greater than the difference between these lengths.

2s is not less than 1/2s+ 2/3s

A triangle is polygon with the three edges and three vertices. It is one of the basic shapes in the geometry. A triangle with the vertices A, B, and C is denoted Δ ABC.

In the Euclidean geometry, any three points, when the non-collinear, determine a unique triangle and simultaneously, a unique plane (i.e. two-dimensional Euclidean space). In the other words, there is the only one plane that contains that triangle, and every triangle is contained in some plane. If the entire geometry is only  Euclidean plane, there is only one plane and all triangles are contained in it; however, in the higher-dimensional Euclidean spaces, this is no longer true. This article is about triangles in the Euclidean geometry, and in the particular, the Euclidean plane, except where otherwise noted.

new triangle perimeter is = 2s + 1/2s + 2/3s

This new triangle, however, cannot be created physically because

The length of each side is less than sum of the lengths of the other two sides and greater than the difference between these lengths.

2s is not less than 1/2s+ 2/3s

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The percent change formula is:

In this case, the percent change is:

Answer:

55

Step-by-step explanation:

First solve for f(-3):

[tex]f(-3) = 3(-3)^2-(-3)+5[/tex]

[tex]f(-3)=3(9)+3+5[/tex]

[tex]f(-3)=27+3+5[/tex]

[tex]f(-3) = 35[/tex]

Second solve for f(2):

[tex]f(2) = 3(2)^2-(2)+5[/tex]

[tex]f(2) = 3(4)-(2)+5[/tex]

[tex]f(2) = 12-2+5[/tex]

[tex]f(2) = 15[/tex]

Now plug in f(-3) and f(2) to the expression:

[tex]2(f(-3))-(f(2)) =[/tex]

[tex]2(35)-(15)=[/tex]

[tex]70-15=55[/tex]

A situation in which positive and negative numbers are used to describe values that have opposite meaning is that John is on top of a mountain that is 2000 above sea level and his friend is diving and is below 2000 feet.

The thing that 0 represents is the addition in the sea level.

Based on the information illustrated, the situation will be that John is on top of a mountain that is 2000 above sea level and his friend is diving and is below 2000 feet.

Therefore, the addition will be:

= 2000 + (-2000)

= 2000 - 2000

= 0

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Answer: 6x8

Ur answers should be 48 and again we did repeated addition so

6+6+6+6+6+6+6+6 or we can do 12+12+12+12 or 24+24 which we should know use 48

Step-by-step explanation: