SOLUTION: y varies directly as the square of x and inversely as the square root of z. if x is quadrupled and z is multiplied by 8, How much will y change?

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Question 1014926: y varies directly as the square of x and inversely as the square root of z. if x is quadrupled and z is multiplied by 8, How much will y change?
Answer by ikleyn(52782) About Me  (Show Source):
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y varies directly as the square of x and inversely as the square root of z. if x is quadrupled and z is multiplied by 8, How much will y change?
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Answer.   Y%5Bnew%5D%2FY%5Bold%5D = %284%5E2%29%2Fsqrt%288%29 = 16%2F%282%2Asqrt%282%29%29 = 8%2Fsqrt%282%29 = %288%2Asqrt%282%29%29%2F2 = 4%2Asqrt%282%29.