Nonlinear Functions

SAT Math· difficulty 2/5

Which expression equals x5\sqrt{x^5}?

  • A

    x5x^5

  • B

    x2.5x^{2.5}

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  • C

    x1/5x^{1/5}

  • D

    x10x^{10}

Explanation

x5=x5/2=x2.5\sqrt{x^5} = x^{5/2} = x^{2.5}.

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