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b.mueller5
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Homework Statement
A water tank has the shape of an inverted right-circular cone, with radius at the top 15 meters and depth 12 meters. Water is flowing into the tank at rate of 2 cublic meters per minute. How fast is the depth of water in the tank increasing at the instant when the depth is 8 meters
Homework Equations
V=(1/3)(pi)(r^2)(h)
The Attempt at a Solution
dv/dt=2 meter^3/min
dv/dt=(1/3)(pi)(2rh(dr/dt)+(r^2)(dh/dt))
but that has 2 unknow varibles in it.