If p varies inversely as the square of...
If p varies inversely as the square of q and p=8 when q=4, find q when p =32
±16
±8
±4
±2
Correct answer is D
p ∝ 1/q p = k/q K = q2p = 42(8) ∴p = 128/q 32 = 128/q q2 = 128/32 q2 = 4 q = √4 = ± 2
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