Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 7 - Section 7.1 - Radical Expressions and Functions - Exercise Set - Page 511: 10



Work Step by Step

Recall, square roots cancel out exponents of two. Thus, we obtain: $-\sqrt{\frac{4}{25}}\\\\=-\sqrt{\left(\dfrac{2}{5}\right)^2} \\=-\dfrac{2}{5}$
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