Asked by Anonymous

A varies directly as r^2 if a = 12 when r = 2 calculate a when the value of a r = 5 and the value of r when a =48

Answers

Answered by oobleck
a = kr^2
since a/r^2 is constant, you want
a such that a/5^2 = 12/2^2
r such that 48/r^2 = 12/2^2
Answered by ayanda
a.75 b.plus or minus 4
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