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Mathematics 25 Online
OpenStudy (anonymous):

how would you evaluate this without using a calculator. log base of 7 and 1/49

OpenStudy (anonymous):

idea is to write \[\frac{1}{49}\] as the base (7) to some power

OpenStudy (anonymous):

since \[7^{-2}=\frac{1}{49}\] your answer is -2

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