SOLUTION: The volume of a cylinder is jointly proportional to the square of its radius and to its height. It's volume is 942cm^2 when its height is 3cm and its radius is 10 cm. The proportio
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Question 1039516: The volume of a cylinder is jointly proportional to the square of its radius and to its height. It's volume is 942cm^2 when its height is 3cm and its radius is 10 cm. The proportionality constant constant is k=3.14
a. what will be the radius if the volume is doubled?
b.What will happen to the volume if the radius is halved and while the height is quadrupled?
Answer by chen.aavaz(62) (Show Source): You can put this solution on YOUR website!
a.
volume: V
radius: R
height: H
then
if
and
(remains the same), then
so
b.
and
So it remains the same.
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