Answer
$-\frac{4}{7}$
Work Step by Step
Apply the rule: $\sqrt[n]{\frac{a}{b}}=\frac{\sqrt[n]{a}}{\sqrt[n]{b}}$
$-\sqrt{\frac{16}{49}}=-\frac{\sqrt{16}}{\sqrt{49}}$
Evaluate and simplify.
$-\sqrt{\frac{16}{49}}=-\frac{4}{7}$
College Algebra (11th Edition)
by Lial, Margaret L.; Hornsby John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
0321671791
ISBN 13:
978-0-32167-179-0
Chapter R - Section R.7 - Radical Expressions - R.7 Exercises - Page 67: 42
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