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2 years ago

Please help me!!!!!!!

Mathematics

1 answer:

AlekseyPX2 years ago

5 0

Your answer is 11.32 because each segment is 1 point behind the three or the hundredths place.

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Evaluate 9+ w/5 + 5h when h= -8 and w= 20

andrezito [222]

Answer:

Answer is below

Step-by-step explanation:

Evaluate for h=−8,w=20

9+20/5+(5)(-8)

So therefore your answer would be -27

5 0

3 years ago

In a simple regression analysis for a given data set, if the null hypothesis β = 0 is rejected, then the null hypothesis ρ = 0 i

kati45 [8]

Answer:

Null hypothesis: $\rho =0$

Alternative hypothesis: $\rho \neq 0$

The statistic to check the hypothesis is given by:

$t=\frac{r \sqrt{n-2}}{\sqrt{1-r^2}}$

And is distributed with n-2 degrees of freedom

And the statistic to check the significance of a coeffcient in a regression is given by:

$t_1 = \frac{\hat{\beta_1} -0}{S.E (\hat{\beta_1})}$

For this case is importantto remember that t1 and p value for test of slope coefficient is the same test statistic and p value for the correlation test so then the answer would be:

Always

Step-by-step explanation:

In order to test the hypothesis if the correlation coefficient it's significant we have the following hypothesis:

Null hypothesis: $\rho =0$

Alternative hypothesis: $\rho \neq 0$

The statistic to check the hypothesis is given by:

$t=\frac{r \sqrt{n-2}}{\sqrt{1-r^2}}$

And is distributed with n-2 degrees of freedom

And the statistic to check the significance of a coeffcient in a regression is given by:

$t_1 = \frac{\hat{\beta_1} -0}{S.E (\hat{\beta_1})}$

For this case is importantto remember that t1 and p value for test of slope coefficient is the same test statistic and p value for the correlation test so then the answer would be:

Always

4 0

2 years ago

Henrietta is mixing paint for an art project. She uses 2 cups of red paint for every 3 cups of yellow paint for each batch. If s

bezimeni [28]

2/3=6/x
2x=6*3
2x=18
x=18/2
x=9

5 0

2 years ago

Pls Help! Very Easy! 10 points! Brainliest if you are correct!

SSSSS [86.1K]

We can see that the 33 degrees corresponds to angle A (parallel lines) meaning they’re equal.
This means that 33 + 2x = 5x (5x is the exterior angle, so the other two interior angles’ sum must equal to it)
3x = 33
x = 11

3 0

2 years ago

a drilling team detected water 38 feet below the ground. if it took workers 8 days to be able to dig and pull up the water, how

xz_007 [3.2K]

Answer:

On average, the workers dig 4.75ft each day. Also, what x and y questions?

Step-by-step explanation:

Take $38/8=4.75$

I hope you have a great day and make me the brainliest.

3 0

2 years ago