Calculus
posted by Lian .
A vessel is in the shape of an inverted cone. The radius of the top is 5cm and the height is 8cm. Water is poured into a height of xcm. Show that if the volume of the water is Vcm^3,then V=(25/192)*pi*x^3. (The volume of a cone is given by the formula V=(1/3)*pi*r^2*h)

r = (5/8) x
V = (1/3) pi [ (5/8) x ]^2 x
V = (1/3) pi (25/64) x^3
etc