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3 years ago

Math Help PLZ!!!!!!!!!

Mathematics

1 answer:

VMariaS [17]3 years ago

4 0

Answer: C

Step-by-step explanation:

f(x) = 2x + 1 ⇒ 2x + 1

- g(x) = -(x² - 7) ⇒ -x² + 7

(f-g)(x) = -x² + 2x + 8

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3 years ago

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3 years ago

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Answer:

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Step-by-step explanation:

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99% confidence level

So $\alpha = 0.01$ , z is the value of Z that has a pvalue of $1 - \frac{0.01}{2} = 0.995$ , so $Z = 2.575$ .

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This minimum sample size is n.

n is found when $M = 0.1$