Asked by Amy
If y varies jointly as x squared and the radical of z, and y = 49 when x =2 and z=25, determine y when x=-1 and z =16
Answers
Answered by
Damon
I guess you mean
y = k x^2 sqrt z
49 = k (4)(5)
k = 49/20
y = (49/20)(1)(4) = 49/5
y = k x^2 sqrt z
49 = k (4)(5)
k = 49/20
y = (49/20)(1)(4) = 49/5
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