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Mathematics 8 Online
OpenStudy (anonymous):

can someone help me with my question please? I really have no clue about what steps to perform.

OpenStudy (adi3):

wow

OpenStudy (anonymous):

A water tank is in the shape of a hemisphere with a radius of 10 ft, and the base of the hemisphere is 30 ft off the ground. |dw:1425551096718:dw| How much work is required to fill in the tank with water pumped from the ground into the bottom of the tank? (the density of water is 62.4 lb/ft^3 )

OpenStudy (anonymous):

(this is my question)

OpenStudy (anonymous):

What steps should I perform?

OpenStudy (adi3):

i suck in geometry sorry

OpenStudy (anonymous):

is this a calculus 2 work problem? or what level math class?

OpenStudy (anonymous):

i dont want to throw integrals and radius of a disk at you if your not in cal 2

OpenStudy (perl):

we can use the integral: $$\Large \int_{a}^{b} \rho y A(y) dy $$

OpenStudy (perl):

lets take a cross section of the hemisphere

OpenStudy (wormynut):

find the volume of the hemisphere and add it to the volume of the cylinder!

OpenStudy (perl):

|dw:1425564114639:dw|

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