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4 years ago

What is the volume of a cone that has a circumference of 309 feet and a height of 18 feet

Mathematics

2 answers:

Bas_tet [7]4 years ago

4 0

Answer:

v = 1.8 x 10^6

Step-by-step explanation:

v= π r 2h /3

kolezko [41]4 years ago

4 0

Answer:

V = 45,235 ft³

Step-by-step explanation:

The general formula for the volume of a cone:

V = $\frac{1}{3}$ πr³, where r = radius

Given the circumference of 309 feet, you can solve to find the radius of the cone:

C = 2πr or 309 = 2πr

Divide by 2π: 309/2π = 2πr/2π

Solve: r ≈ 49

V = $\frac{\pi r^{2}h}{3}=\frac{\pi 49^{2}}{3}=45,235$

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3 years ago

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3 years ago

Read 2 more answers

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VMariaS [17]

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 level of $1-\alpha$ , we have the following confidence interval of proportions.

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In which

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For this problem, we have that:

323 blacks, 86% of blacks said that they would welcome a white person into their families. This means that $n = 323, p = 0.86$

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