Question

A bowling ball has a total diameter of 8.5 in. It consists of 2 parts. The inside is a spherical core with a diameter of 6 in. Surrounding the core is a layer of polyurethane.

What is the volume of the polyurethane? Use 3.14 to approximate pi and round your answer to one decimal place.

____in3

Answer 1

@Directrix

Answer 2

@TeenWolfGirl What is 8.5 in.divided by 2 =
We need that for the radius of the bowling bowl.

Answer 3

4.25

Answer 4

Volume of entire sphere minus Volume of Core = Volume of Polyurethane.

So....

Answer 5

Poly =

[ (4/3) * (3.14) * (4.25) ^ 3 ] - [ (4/3) * (3.14) * 3^3 ] =

Answer 6

http://www4b.wolframalpha.com/Calculate/MSP/MSP2391g9hgdihh33d50g60000324dc3g4d4gbd42a?MSPStoreType=image/gif&s=49&w=507.&h=20.

Answer 7

Let me see what I get.

Answer 8

http://www.wolframalpha.com/input/?i=%5B+%284%2F3%29+*+%283.14%29+*+%284.25%29+%5E+3+%5D++-++%5B+%284%2F3%29+*+%283.14%29+*+3%5E3+%5D+%3D

Answer 9

Round to one decimal place.

Answer 10

208.4

Answer 11

Yes, thati s what I got.

Answer 12

Thanks

Answer 13

You are welcome.