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2 years ago

D - 41 = 19

Mathematics

1 answer:

DaniilM [7]2 years ago

3 0

Answer:

<u>see explanation</u>

Step-by-step explanation:

add 41; d = 60

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Hunter-Best [27]

Answer:

<h3>The workout ratio of the online sales to shop sales is 1:3.</h3>

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2 years ago

The conference room can hold fewer than 100 people<br><br> What is the equation for this question

kodGreya [7K]

C = conference room capacity

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2 years ago

We are studying the proportion of cities that have private garbage collector. We want a maximum error of 0.10 and a 95% confiden

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Answer:

The minimum number of cities we need to contact is 96.

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.

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

In which

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

95% confidence interval

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In this problem, we have that:

$p = 0.5, M = 0.1$

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$0.1 = 1.96*\sqrt{\frac{0.5*0.5}{n}}$

$0.1\sqrt{n} = 0.98$

$\sqrt{n} = 9.8$

$(\sqrt{n})^{2} = (9.8)^{2}$

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The minimum number of cities we need to contact is 96.

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2 years ago

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Murljashka [212]

Are you asking a question? Or would you like this question checked for you?

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2 years ago

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or $\sqrt{ 53^{2} + 23 ^{2} }$

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2 years ago