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ANTONII [103]
3 years ago
13

A cone has a volume of 1309cm^3. If the height of the cone is 8 centimeters, find its radius.

Mathematics
1 answer:
zhenek [66]3 years ago
7 0

Answer:

The radius is 12.5.

Step-by-step explanation:

The volume of a cone is found using the formula V = \frac{1}{3} \pi r^2 h. Substitute the values V = 1309 and h = 8. Solve for r.

V = \frac{1}{3} \pi r^2 h\\1309 = \frac{1}{3} \pi r^2 * 8\\3927 = \pi r^2*8\\156.2 = r^2\\12.5 = r

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Answer:

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Step-by-step explanation:

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2: Interchange the variables y and t, resulting in t=-\frac{8}{27}y^3

3: Multiply both sides by 27, resulting in 27t=-8y^3

4: Divide both sides by -8, resulting in -\frac{27t}{8}=y^3

5: Find the cube root of both sides, resulting in \sqrt[3]{-\frac{27t}{8} }=y

6: Apply a radical rule, resulting in -\sqrt[3]{\frac{27t}{8} } =y

7: Apply another radical rule, resulting in -\frac{\sqrt[3]{27t} }{\sqrt[3]{8} } =y

8: Simplify the denominator, resulting in  -\frac{\sqrt[3]{27t} }{2} =y

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10: Simplify \sqrt[3]{27}, resulting in -\frac{3\sqrt[3]{t}   }{2} =y

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3 years ago
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ivolga24 [154]

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Step-by-step explanation:

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Step-by-step explanation:

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Sladkaya [172]
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