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svetoff [14.1K]
3 years ago
14

If a=3b^3/c, what happens to a when b is doubled

Mathematics
1 answer:
Ratling [72]3 years ago
4 0
"b" is cubed, so when you double it (2*b) the 2 also is cubed.

a = 3(2b)³/c
a = 3*8b³/c

So "a" is increased to "8a" 
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g A researcher wants to construct a 95% confidence interval for the proportion of children aged 8-10 living in Atlanta who own a
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Answer:

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Step-by-step explanation:

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95% confidence level

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Estimate the sample size needed if no estimate of p is available so that the confidence interval will have a margin of error of 0.02.

We have to find n, for which M = 0.02.

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0.02\sqrt{n} = 1.96*0.5

\sqrt{n} = \frac{1.96*0.5}{0.02}

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