Joint Variation: what is "the square of z"?

Reporter529

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May 24, 2006
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y varies jointly with x and the square of z. One set of values is y=375 when x=3 and z=25. Find y when x=8 and z=6

what's the square of z?? z^2 or the square root of z?
 
"The square of" means "squared". "The square root of" means "the square root of".

Eliz.
 
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