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Mathematics 20 Online
OpenStudy (anonymous):

Please Help!!!!!

OpenStudy (anonymous):

with...

OpenStudy (anonymous):

A bottle of lotion is shaped like a cylinder with a radius of 3 cm and a height of 12 cm. The empty tube inside the cylinder has a radius of 0.5 cm and is the same height as the bottle. What is the volume of the lotion in the bottle? Use 3.14 to approximate pi, and express your answer to one decimal place. cm3

OpenStudy (anonymous):

sorry i can't do much when pi is involved sry

OpenStudy (anonymous):

OpenStudy (anonymous):

Volume of a cylinder: \(V = \pi r^2 h\) Plug in what we know: \(V = (3.14)(3^2)(12)\) Multipy those three

OpenStudy (anonymous):

We have to find the total volume of the container, and the empty part and subtract them to find the volume of the liquid.

OpenStudy (anonymous):

V=(3.14)(3^2)(12) 3.14x9x12=339.12

OpenStudy (anonymous):

Yes, now find the volume of the empty space: \(V = (3.14)(0.5^2)(12)\)

OpenStudy (anonymous):

9.42

OpenStudy (anonymous):

@iGreen.

OpenStudy (anonymous):

Yes, so subtract: 339.12 - 9.42

OpenStudy (anonymous):

329.7

OpenStudy (anonymous):

Yes, that is our answer.

OpenStudy (anonymous):

clandice and happieness :3

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