math please help

determine the domain of the real valued function f(x) = sqrt(5 - (sqrtx))

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asked by mary
  1. sqrt(x) has domain x >= 0

    sqrt(5-sqrt(x)) has domain 5 - sqrt(x) >= 0, or sqrt(x) <= 5

    so, the domain of f(x) is 0 <= x <= 25

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    posted by Steve

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