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elena-14-01-66 [18.8K]

3 years ago

7

What is the approximate circumference of a circle with a diameter of 56 cm? (Use π = 3.14.) A. 351.68 cm B. 175.84 cm C. 87.92 c

m D. 10.82 cm

1 answer:

laiz [17]3 years ago

3 0

The answer to your question is 175.84 bc C=2(pi)r and if you plug in the numbers it equals 175.84... B hope that helped :)

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ANEK [815]

Answer:

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Step-by-step explanation:

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3 years ago

Y =1/4x + 3<br> Y = -1<br> Help me

kap26 [50]

Y = 7

Explication pas à pas:

x est -3 donc -3 et connectez le x.

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3 years ago

A Rasmussen Reports survey of 1,000 US adults found that 42% believe raising the minimum wage will help the economy. Construct a

vitfil [10]

Answer:

(0.3798, 0.4602)

Step-by-step explanation:

Let p be the true proportion of US adults who believe raising the minimum wage will help the economy. A point estimate for p is $\hat{p}=0.42$ and a good aproximation (because we have a large sample) for the standard deviation of $\hat{p}$ is $\sqrt{\hat{p}(1-\hat{p})/n}=\sqrt{0.42(0.58)/1000}=0.0156$ . Therefore, a 99% confidence interval for p is given by $\hat{p}\pm z_{\alpha/2}\sqrt{\frac{\hat{p}(1-\hat{p})}{n}}$ where $\alpha=0.01$ and $z_{\alpha/2}$ is the $\alpha/2$ th quantile of the standard normal distribution, so we have, $0.42\pm z_{0.005}0.0156$ , i.e., $0.42\pm(-2.5758)(0.0156)$ or equivalently (0.3798, 0.4602).

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3 years ago

Find the perimeter of a rectangle with dimensions 12 feet and 15 feet

Ronch [10]

Answer:

The perimeter is 54 square units

Step-by-step explanation:

You find the sum of 12+12 and that's 24, and 15+15, and that is 30, and 30+24 is 54.

Hope this helped!

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3 years ago

Read 2 more answers

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Answer:

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2 years ago