help me its mathhhhh

Help Me Its Mathhhhh

Answers

Answer 1

Answer:

x=9 im pretty sure

Step-by-step explanation:

Help Me Its Mathhhhh

Related Questions

The solids are similar. Find the surface area of the red solid.

Answers

Answer:

756

Step-by-step explanation:

The ratio of areas is the square of the scale factor.

First, we find the scale factor from the blue solid to the red solid.

scale factor = 6/4 = 3/2

The ratio of areas is the square of the scale factor:

ratio of areas = (3/2)^2 = 9/4

volume of red solid = volume of blue solid * ratio of areas

volume of red solid = 336 m^2 * 9/4 = 756 m^2

Answer: S = 756 m^2

Best Buy decreased the cost of a Sony flat screen monitor from $525 to $430. What is the percent
of decrease?

Answers

The answer would be 1.2

What does it mean if your inference is valid

Answers

In logic, an inference is a process of deriving logical conclusions from premises known or assumed to be true. The term derives from the Latin term, which means "bring in." An inference is said to be valid if it's based upon sound evidence and the conclusion follows logically from the premises.

hope this helped <3

It’s logic, Hope it helps out good luck



2) Michael decides to go for a cycle ride. He rides a ​

distance of 80 km at an average speed of 24 km/h. ​

Work out how long Michael’s ride takes

Answers

Step-by-step explanation:

REMEMBER D/S×T (triangle)

therefore, finding time

D/S

80/24

make sure to press the degrees button on your calculator

3 hours and 20 minutes

Pediatricians recommend no more than 2 hours of screen time daily for middle school aged children. A teacher at a local middle school would like investigate whether on average, students at her school get more than 2 hours of daily screen time. If the average screen time for students at this middle school is 2 hours, which of the following is more likely? • that a random sample of 30 students get more than 3 hours of screen time daily, on average, • that a random sample of 40 students get more than 3 hours of screen time daily, on average That a random sample of 40 students get more than 3 hours of screen time daily, on average That a random sample of 30 students get more than 3 hours of screen time daily, on average Both are equally likely

Answers

If the average screen time for students at this middle school is 2 hours, the option that is more likely is option C: that a random sample of 40 students will get more than 3 hours of screen time daily, on average, compared to a random sample of 30 students.

What is the random sample?

To determine the likelihood, consider sampling variability and sample size.

Larger samples = more accurate estimates. Larger samples=more stable estimates.

If we randomly sample 30 middle school students, the sample mean is likely to be closer to the population mean of 2 hours.

Sample size of 30 is small, increasing chances of random variation impacting sample mean. If one can select a larger sample of 40 students, the population mean estimate is said to be  more accurate and less affected by fluctuations.

A sample of 40 students may have an average screen time of over 3 hours per day.

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Determine is an outlier is present in the given data set: 43, 69, 78, 88, 54, 73,
54, 59,70

Answers

Answer:

43

Step-by-step explanation:

43 is the most the lowest number while the others are around the same range

Hope this helps! Pls mark brainliest!

please help!!!!! simplify

Answers

Answer:

Pretty sure it's B

Step-by-step explanation:

Suppose the monthly cost for the manufacture of golf balls is C(x) = 3390 + 0.48x, where x is the number of golf balls produced each month. a. What is the slope of the graph of the total cost function? b. What is the marginal cost (rate of change of the cost function) for the product? c. What is the cost of each additional ball that is produced in a month? CE a. What is the slope of the graph of the total cost function? b. What is the marginal cost (rate of change of the cost function) for the product? c. What is the cost of each additional ball that is produced in a month?

Answers

The slope of the graph of the total cost function represents the rate of change of the total cost with respect to the number of golf balls produced each month, the total cost function is given by C(x) = 3390 + 0.48x.

How to explain the information

The coefficient of x in the equation represents the slope of the graph. Therefore, the slope of the total cost function is 0.48.

In this case, the marginal cost is equal to the derivative of the cost function with respect to x. Taking the derivative of C(x) = 3390 + 0.48x with respect to x, we get:

C'(x) = 0.48

Therefore, the marginal cost for the product is 0.48.

The cost of each additional ball that is produced in a month is equal to the marginal cost. From the previous calculation, we determined that the marginal cost is 0.48. Therefore, the cost of each additional ball produced in a month is $0.48.

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Find the interest earned if you place $76.43 into an account that pays 21.5% simple interest, and leave it in for 3 years.

Answers

A = $125.73

I = A - P = $49.30

hey!

Equation:

A = P(1 + rt)

Calculation:

First, converting R percent to r a decimal

r = R/100 = 21.5%/100 = 0.215 per year.

Solving our equation:

A = 76.43(1 + (0.215 × 3)) = 125.72735

A = $125.73

The total amount accrued, principal plus interest, from simple interest on a principal of $76.43 at a rate of 21.5% per year for 3 years is $125.73.

------------------------

hope i helped in some way! keep pushing you got this

What are the values of x that would make the line j parallel to line k? Help me please!

Answers

Answer:

For line j to be parallel to line k, then x has to be equal to 0

Step-by-step explanation:

if line j is parallel to line k, then the two angles are equal.

They are equal because they would be alternate angles and alternate angles are equal in value

Thus,

3x + 10 = 5x + 10

5x-3x = 10-10

2x = 0

x = 0

The dimensions of two square pyramids formed of sand are shown. How much more sand is in the pyramid with the greater volume?

Answers

Answer:

The pyramid with the greater volume has 5in^3 more sand

Step-by-step explanation:

Given

Pyramid A

[tex]B = 25in^2[/tex] -- Base Area

[tex]h = 9in[/tex] --- height

Pyramid B

[tex]B = 30in^2[/tex]

[tex]h = 7in[/tex]

See attachment for pyramids

The volume of a square pyramid is:

[tex]V = \frac{1}{3}Bh[/tex]

First, calculate the volume of pyramid A

[tex]V_A = \frac{1}{3} * 25in^2 * 9in[/tex]

[tex]V_A = 25in^2 * 3in[/tex]

[tex]V_A = 75in^3[/tex]

Next, the volume of pyramid B

[tex]V_B = \frac{1}{3} * 30in^2 * 7in[/tex]

[tex]V_B = 10in^2 * 7in[/tex]

[tex]V_B = 70in^3[/tex]

To calculate how much more sand the greater pyramid has, we simply calculate the absolute difference (d) between their volumes

[tex]d = |V_B - V_A|[/tex]

[tex]d = |70in^3 - 75in^3|[/tex]

[tex]d = |- 5in^3|[/tex]

[tex]d = 5in^3[/tex]

Given: SSb = 21 SSW = 142 dfb = 3 dfw = 290 What is the value for the mean squares between?

Answers

For the given values of SSb, SSW, dfb, and dfw, the value for the mean squares between (MSb) is 7.

To find the mean squares between (MSb), you need to divide the sum of squares between (SSb) by the corresponding degrees of freedom (dfb).

MSb = SSb / dfb

Using the values provided:

SSb = 21

dfb = 3

MSb = 21 / 3

MSb = 7

Therefore, the value for the mean squares between (MSb) is 7.

Mean squares, also known as the mean squared error (MSE), is a statistical measure used to assess the average squared difference between the predicted and actual values in a dataset.

It is commonly used in various fields, including statistics, machine learning, and data analysis, to evaluate the performance of a prediction model or to quantify the dispersion or variability of a set of values.

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can ya'll do me a favor and cheak out my boy LOOCY LACE on you,tube all caps

Answers

Answer:

ok (tho i advise you use brainly for education purposes only :)

Step-by-step explanation:

What is 1/2 ( f - 10 ) when f= 16

Answers

1/2(16-10)
1/2(6)
=3 Hhvgfgvccfggfrffdc

Solve the following initial value problem. y2 – 8y + 12, y(0) = 3 dx

Answers

The solution of the initial value problem is y= 3e2x - c2e2x +c2e6x.

Given y2 – 8y + 12, y(0) = 3

y2 – 8y + 12 = 0

The above equation is a quadratic equation, let us factorize it.

(y - 6)(y - 2) = 0y = 6 or y = 2

Therefore, the general solution of the differential equation isy = c1e2x + c2e6x............(1)

Now, let us apply the initial condition y(0) = 3 in the above general solution to find the value of c1 and c2.

y(0) = c1e2(0) + c2e6(0)3 = c1 + c2

On solving, we getc1 + c2 = 3c1 = 3 - c2

Substitute the value of c1 in equation (1)

y = (3 - c2)e2x + c2e6x = 3e2x - c2e2x + c2e6x...........(2)

The above equation is the required solution of the given initial value problem.

Therefore, the solution of the given initial value problem is

y = 3e2x - c2e2x + c2e6x.

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Ž + 7
+7 = 12
Help me with this
And a step by step

Answers

Z =-2 that’s what it is

The degree of precision of a quadrature formula whose error term is is 5 2

Answers

For the quadrature formula, the degree of precision is 2. The precision level of a quadrature formula indicates the maximum degree of polynomial functions that the formula can accurately integrate without any error. So, option b is the correct answer.

In this case, the error term of the quadrature formula is given as (h²/3) f(3)(ξ), where h represents the step size and f(3)(ξ) represents the third derivative of the function being integrated.

To determine the degree of precision, we need to find the highest power of h in the error term. Since the error term is (h²/3) f(3)(ξ), the highest power of h is 2.

Therefore, for the quadrature formula whose error term is (h²/3) f(3)(ξ), the degree of precision is 2.

Therefore the correct answer is option b.2.

The question should be:

The degree of precision of a quadrature formula whose error term is (h²/3) f(3)(ξ) is:

a. 1

b. 2

c. 3

d. 4

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1\ solve the system using elimination. 4x+5y=2 -2x+2y=8

Answers

The answer would be 6x+3y=2

The area of a rectangle is found using the formula A=lw, where l is the length of the rectangle and w is the width. Multiply each pair of factors and express the area of each rectangle as a single polynomial in terms of x.


l=x+14; w=3x+1

Answers

Answer:

A(x) = 3x² + 43x + 14

Step-by-step explanation:

Area of a rectangle = length × width

length = x + 14

width = 3x + 1

Area of a rectangle = length × width

= (x + 14)(3x + 1)

= 3x² + x + 42x + 14

= 3x² + 43x + 14

express the area of each rectangle as a single polynomial in terms of x.

A(x) = 3x² + 43x + 14

The following data gives an approximation to the integral M = S'f(x) dx = = 2.0282. Assume M = N, (h) + kyhº + k_h4 + ..., N, (h) = 2.2341, N, then N2(h) = 1.95956 0.95957 This option This option 2.23405 2.01333 This option O This option Romberg integration for approximating "', (x) dx gives R21 = 2 and R22 = 2.55 then R41 = 5.16 0.35 This option This option 4.53 2.15 O This option This option When approximating Sof(x)dx using Romberg integration, R4,4 gives an approximation of order: h10 h8 h4 h6

Answers

The value of N₂(h) for the given approximation is 1.95956. Richardson extrapolation allows us to estimate the integral with higher accuracy by combining two approximations with different step sizes. So, the correct answer is option a.

To approximate the integral [tex]M=\int\limits^1_0 {f(x)} \, dx[/tex]  using the given data, we can use Richardson extrapolation.

Let N₁(h) be the approximation with step size h, and N₁(h/2) be the approximation with step size h/2.

We can express the error in terms of a power series as M = N₁(h) + k₂h² + k₄h⁴ + ...

Using Richardson extrapolation, we can eliminate the term with the highest power of h by taking a weighted sum of the two approximations:

[tex]N_2(h) = \frac{4N_1(\frac{h}{2}-N_1(h) )}{3}[/tex]

Substituting the given values N₁(h) = 2.2341 and N₁(h/2) = 2.0282:

[tex]N_2(h)=\frac{4(2.0282) - 2.2341}{3}[/tex]

N₂(h) = 1.95956

Therefore, the value of N₂(h) is approximately 1.95956. The correct answer is option a. 1.95956.

The question should be:

The following data gives an approximation to the integral[tex]M=\int\limits^1_0 {f(x)} \, dx[/tex] N₁(h) = 2.2341, N₁(h/2) = 2.0282. Assume M = N₁(h) + k₂h² + k₄h⁴ + ...,  then N₂(h) = ?

a. 1.95956

b. 0.95957

c. 2.23405

d. 2.01333

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This season, the probability that the Yankees will win a game is 0.56 and the probability that the Yankees will score 5 or more runs in a game is 0.46. The probability that the Yankees lose and score fewer than 5 runs is 0.32. What is the probability that the Yankees would score fewer than 5 runs when they win the game? Round your answer to the nearest thousandth.

Answers

The probability that the Yankees would score fewer than 5 runs when they win the game is 0.32.

Let the events be A: Yankees win a game

B: Yankees score 5 or more runs

C: Yankees lose a game

D: Yankees score fewer than 5 runs

We are given the following probabilities:

P(A) = 0.56 (probability of winning)

P(B) = 0.46 (probability of scoring 5 or more runs)

P(C and D) = 0.32 (probability of losing and scoring fewer than 5 runs)

We want to find the probability of scoring fewer than 5 runs when they win the game, which is P(D|A).

We can use Bayes' theorem to find this probability:

P(D|A) = P(A and D) / P(A)

Using the definition of conditional probability:

P(D|A) = P(D and A) / P(A)

We know that P(D and C) = P(C and D), as both events represent the same outcome.

Using the fact that the sum of the probabilities of mutually exclusive events is equal to 1:

P(D and C) + P(B and C) = 1

Rearranging the equation:

P(D and C) = 1 - P(B and C)

Now, let's find P(D and A):

P(D and A) = P(D and A and C) + P(D and A and not C)

P(D and A) = P(D and A and C) + 0

P(D and A) = P(C and D and A)

Substituting the probabilities we have:

P(D|A) = P(C and D) / P(A)

P(D|A) = P(C and D) / P(C and D) + P(B and C)

P(D|A) = 0.32 / (0.32 + P(B and C))

We need to find P(B and C), which we can calculate using the given probabilities:

P(B and C) = P(C and B)

P(B and C) = P(C) - P(C and D)

P(B and C) = 1 - P(C and D)

P(B and C) = 1 - 0.32

P(B and C) = 0.68

Now we can substitute this value into the equation:

P(D|A) = 0.32 / (0.32 + 0.68)

P(D|A) = 0.32 / 1

P(D|A) = 0.32

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A parabola can be drawn given a focus of (2, 4)(2,4) and a directrix of x=4x=4. Write the equation of the parabola in any form.

Answers

Answer:

The equation of the parabola is;

x = -(1/4)·(y - 4)² + 3

Step-by-step explanation:

The given focus of the parabola is f = (2, 4)

The directrix of the parabola is x = 4

The vertex form of the equation of the parabola can be expressed as follows;

x = a·(y - k)² + h

(y - k)² = 4·p·(x - h)

Where;

(h, k) = The vertex of the parabola

(h + p, k) = The focus of the parabola

x = h - p = The directrix

Therefore, k = 4

h + p = 2...(1)

h - p = 4...(2)

∴ 2·h = 6

h = 6/2 = 3

From equation (1), we have;

p = 2 - 3 = -1

p = -1

From the equation of the parabola in the form, (y - k)² = 4·p·(x - h), we have;

The equation of the parabola is (y - 4)² = 4 × (-1) ·(x - 3)

Therefore, we have;

(y - 4)² = -4·x + 12

4·x = 12 - (y - 4)²

The equation of the parabola is x = -(1/4)·(y - 4)² + 3

y² -8·y + 16 = -4·x + 12

4·x = 8·y - y² - 16 + 12 = 8·y - y² - 4

x = 2·y - y²/4 - 1 = -y²/4 + 2·y - 1

The equation of the parabola can also be written in the form

x = -y²/4 + 2·y - 1 = -0.25·y² + 2·y - 1

Will give Brainliest to whoever helps me.

Answers

Answer:

BJCJCJ

Step-by-step explanation:

Answer:

1. B

2. J

3. C

4. F

5. C

6. J (I think, Sorry if u get it wrong)

Step-by-step explanation:

Thank me later lol.

suppose you wish to whirl a lead fishing weight of mass m in a vertical circle using a string that is 0.20 m long. what minimum speed must the fishing weight have in order to maintain a circular path?

Answers

The fishing weight must have a minimum speed of approximately 1.98 m/s to maintain a circular path with a 0.20 m long string.

In order to maintain a circular path, the centripetal force (Fc) must be equal to or greater than the weight force (mg) of the fishing weight. The centripetal force is given by the equation Fc = (mv^2) / r, where m is the mass of the fishing weight, v is the speed, and r is the radius (0.20 m).

To find the minimum speed required, we can equate the centripetal force and weight force:

(mv^2) / r = mg

Simplifying the equation:

v^2 = rg

v = sqrt(rg)

Substituting the values of r (0.20 m) and g (acceleration due to gravity, approximately 9.8 m/s^2):

v = sqrt(0.20 * 9.8)

v ≈ 1.98 m/s

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Find the value of

66 + 57 − 43 + 38 − 25 + 19 − 7 + = 64 + 59 − 41 + 36 − 23 + 17 – 5

Answers

Answer:

212, pretty sure

Step-by-step explanation:

If A is the angle between the vectors u =(5, 0,82 ) and v = (0,0,1). What is the value of cosine of A? (Round off the answer upto 2 decimal places) Question 2 If A and B are matrix: A-la a2] = rai аз as bı [b1 b2 B= [bz b4] If a1 = 4, a2=7, a3 = 8, 24 = 4, also, b1 = 5, b2 = -1, b3 = 3, b4 = 0, then find inner product of (A, B)? (Round off the answer upto 2 decimal places) Question 1 u = (2+26 1. 1 + 88 1,0). Find norm of uie. I u 11? (Round off the answer upto 2 decimal places)

Answers

The analysis of the matrices and vectors components indicates;

a) coa(A) = 1

b) <A, B> = 37

c) ||u|| ≈ 91.79

What is a vector?

A vector is an mathematical object has magnitude and direction. Vector quantities can be represented by an ordered list of numbers, representing the components of the vector.

a) The cosine of the angle between the vectors, can be obtained from the dot product formula as follows;

cos(A) = (5)·(0) + (0)·(0) + (82)·(1) = 82

The magnitudes of the vectors are; ||u|| = √(5² + 0² + 82²) = 82

||v|| = √(0² + 0² + 1²) = 1

cos(A) = (u·v)/(||u||·||v||) = 82/82 = 1

cos(A) = 1

b) The inner product of the matrices;  [tex]A=\begin{bmatrix} 4&7 \\ 8& 4 \\\end{bmatrix}[/tex] and [tex]B = \begin{bmatrix}5 &-1 \\ 3&0 \\\end{bmatrix}[/tex] can be found from the sum of the product of the corresponding entries of the matrices as follows;

<A, B> = 4 × 5 + 7 × (-1) + 8 × 3 + 4 × 0 = 37

The inner <A, B> = 37

c) The norm of a vector is defined as the square root of the sum of the squares of the components of the vector, therefore;

||u|| = √(|2 + 26i|² + |1 + 88i|² + |0|²)

|2 + 26i| = √(2² + 26²) = √(680)

|1 + 88i| = √(1² + 88²) = √(7745)

||u|| = √((√(680))² + (√(7745))² + (0)²) = √(8425) ≈ 91.79

The norm of the vector is ||u|| ≈ 91.79

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Larry spends half of his workday teaching piano lessons. If he sees 6 students, each for the same amount of time, what fraction of his workday is spent with each student? *

Answers

Answer:

1/12

Step-by-step explanation:

bc ik

Answer:

the right answer is 1/12

Step-by-step explanation:

78/0000

67

777

7654

Find the area of the triangle shown
6 cm
8 cm
O 48 cm squared
O 24 cm squared
O 14 cm squared
O Not here

Answers

24 cm squared because area of a triangle is A=bh/2. 6 x 8 = 48, 48/2=24


please whats this?

Answers

Answer:

5 ³⁄₁₀ or ⁵³⁄₁₀

Step by step explanation:

Answer:

[tex]5 \frac{3}{10}[/tex]

Area = 79.2 ft2
9 ft
4.2 ft
h

Answers

Don’t click that link it’s a scam being sent around brainly, stay safe and don’t click random links.
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