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Square Root Inequality

Algebra Level 1

Which of the following is equivalent to:

\[ 4 < \sqrt{x} < 9 \, ?\]

\[ 0 < \sqrt{x} < 5 \] \[ 0 < x < 81 \] \[ 2 < x < 3 \] \[ 16 < x < 81 \]

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Excel in math and science

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by Chung Kevin

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