Answer
49
Work Step by Step
Using the rules of exponents, we find:
$$\frac{1}{\left(\frac{7^8}{7^9}\right)^2} \\ \frac{1}{\frac{1}{7^2}} \\ 7^2 \\ 49$$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 7 Exponential and Logarithmic Functions - 7.4 Evaluate Logarithms and Graph Logarithmic Functions - 7.4 Exercises - Mixed Review - Page 505: 71
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