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fenix001 [56]
3 years ago
13

A 20 foot long flag pool casts a 8 foot long shadow. At the same time the oak tree casts a 12 foot shadow. How tall is Is the oa

k tree?
Mathematics
1 answer:
Orlov [11]3 years ago
3 0
It depends on where the sun is but the answer is 22 but my math could be wrong
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Answer: 505

Step-by-step explanation:

The formula to find the sample size n , if the prior estimate of the population proportion (p) is known:

n= p(1-p)(\dfrac{z}{E})^2 , where E=  margin of error and z = Critical z-value.

Let p be the population proportion of crashes.

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E= 0.04

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∴ Required sample size = 505

6 0
3 years ago
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