PLEASE HELP Let f(x)=-4x+7 and g(x)=10x-6. Find f(g(x)) Answer choices: A. -40x+24 B. -40x+31 C. -40x+64 D. -40x+70

1 answer:

8 0

$f(x)=-4x+7 \\ \\ g(x)=10x-6 \\ \\ f(g(x))=f(10x-6)=-4*(10x-6)+7=-40x+24+7= \\ \\ -40x+31$

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A sample of 66 obese adults was put on a low-carb diet for a year. The average weight loss was 11 pounds and the standard deviat

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Answer:

The 99% lower confidence bound for the true average weight loss is 3.98 pounds.

This means that we can be 99% sure that the mean weight loss for all obese adults on a low-carb diet is positive.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.99}{2} = 0.005$

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So it is z with a pvalue of $1-0.005 = 0.995$ , so $z = 2.575$

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The lower end of the interval is the sample mean subtracted by M. So it is 11 - 6.02 = 3.98 pounds

The 99% lower confidence bound for the true average weight loss is 3.98 pounds.

This means that we can be 99% sure that the mean weight loss for all obese adults on a low-carb diet is positive.

7 0

3 years ago

Read 2 more answers

Need some help, kinda stuck

ElenaW [278]

Answer:

7/4

Step-by-step explanation:

$\displaystyle\frac{2 + \sqrt{ - 3} }{2} ( \frac{2 - \sqrt{ - 3} }{2} )~~~~~~$

Evaluate.

Solution:

Rewrite it as,

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