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TEA [102]
3 years ago
5

What is the volume of a right circular cone with a diameter of 21 centimeters and a height of 87 centimeters? Use 3.14 as an app

roximation for π. Round your answer to the nearest tenth.
Mathematics
1 answer:
Sindrei [870]3 years ago
4 0
The volume of the cone will be given by:
Volume=1/3πr^2h
therefore the volume of our cone will be:
π=3.14
h=87
r=21/2
Volume=1/3*3.14*(21/2)^2*87
=10,039.365 cm^2
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Answer:

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Step-by-step explanation:

Isolate 'a' term, then multiply by the reciprocal of its coefficient.

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3 years ago
Can someone help me with this?
Mandarinka [93]

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Step-by-step explanation:

Area of rectangle = length * width

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4 0
3 years ago
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WARRIOR [948]

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Step-by-step explanation:

Since she already has $52 you can automatically start by doing:

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Then, take $298 ÷ $72 = 4.13 or about 4 weeks

I divide 298 by 72 because $72 is how much she will earn per week, and by dividing this number by the total amount that she has left to pay narrows it down to about how long she has to save for.

Hope this helps!!

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