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Mashcka [7]
3 years ago
10

Help me please!!! Thank you

Mathematics
1 answer:
KiRa [710]3 years ago
7 0
To find the value of x, we will have to set the perimeters equal. 
(2x+4)*4 would be P for the square and (2x+8)*3 would be P for the triangle.
We have to set these equal and solve for x. 
(2x+4)*4=(2x+8)*3
8X+16=6x+24
-6x  -16   -6x -16
2x=8
x=4
Now we plug x=4 in for each perimeter.
Square: 2(4)+5=13
Triangle: 2(4)+8=16



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g If a hypothesis test with a significance level of α rejects H0: μ1=μ2 in favor of Ha: μ1≠μ2, then thecorresponding (1- α)% con
Effectus [21]

Answer:

The statement, (1- <em>α</em>)% confidence interval for (μ₁ - μ₂) does not contain zero is TRUE.

Step-by-step explanation:

The hypothesis for a test is defined as follows:

<em>H</em>₀: μ₁ = μ₂ vs. <em>H</em>ₐ: μ₁ ≠ μ₂

It is provided that the test was rejected st the significance level <em>α</em>%.

If a decision is to made using the confidence interval the conditions are:

If the null hypothesis value is not included in the (1 - <em>α</em>)% confidence interval then the null hypothesis will be rejected and vice versa.

In this case the null hypothesis value is:

<em>H</em>₀: μ₁ - μ₂ = 0.

If the value 0 is not included in the (1 - <em>α</em>)% confidence interval for the difference between two means, then the null hypothesis will be rejected.

Thus the statement, (1- <em>α</em>)% confidence interval for (μ1- μ2) does not contain zero is TRUE.

5 0
3 years ago
What is the solution to the systems of equations?<br> y= 2/3x + 3<br> x=-2
Romashka [77]

Answer:

y = 8/3

Step-by-step explanation:

x = -2

y = 2/(3*-2) + 3

y = 2/-6 + 3

y = -1/3 + 3

y = -1/3 + 9/3

y = 8/3

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Aleonysh [2.5K]

Answer:

\begin{pmatrix}-2\\-4\end{pmatrix}

Step-by-step explanation:

The question is, how many x and y steps do I have to move the P picture to get it in the Q position. The answer is 2 to the left, so -2, and 4 down, so -4.

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Answer:

10 5/6

Step-by-step explanation:

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