If ${log}_{x} 625 = - 4$ , then the value of $x$ is

5

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0.5

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0.2

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2

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Solution

The correct option is C $0.2$
${log}_{x} 625 = - 4 625 = x^{- 4} 625 = {\frac{1}{5}}^{- 4} x = 0.2$

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