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2 years ago

Simplify. 3(2x + 4y - 2z) + 7(x + y - 4z) A) 13x + 5y - 22z B) -x - 19y + 22z C) 13x + 19y - 34z D) -x - 5y + 34z

Mathematics

2 answers:

RUDIKE [14]2 years ago

6 0

The answer to this equation is C.

Korolek [52]2 years ago

4 0

Answer:

thx

Step-by-step explanation:

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A study of recent records of car accidents revealed that average proportion of drivers who were distracted by their phones at th

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Answer:

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Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence interval $1-\alpha$ , we have the following confidence interval of proportions.

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In which

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In this problem, we have that:

$M = 0.04, p = 0.35$

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

$0.04 = 1.96\sqrt{\frac{0.35*0.65}{n}}$

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$\sqrt{n} = 23.37$

$n = 546.2275$

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