a conical party hat made of cardboard has a radius of 4 in and a height of 12 in. When filled with juice it leaks at the rate of 4 in^3/min. At what rate is the level of juice falling when the juice is 6 in deep?
Thanx!
(answer is 1/pi in/min but how)
h/r=3
Volume=1/3pir^2h=1/27 pi(h^3)
rate of leaking= dv /dt=4
=
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