Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 9 - Roots and Radicals - Chapter 9 Test - Page 431: 4


$\approx -5.6$

Work Step by Step

Using $\sqrt{2}=1.41$ and the properties of radicals, the given expression, $ -\sqrt{32} ,$ evaluated to the nearest tenth, is equal to: \begin{array}{l}\require{cancel} -\sqrt{16\cdot2} \\\\= -\sqrt{(4)^2\cdot2} \\\\= -4\sqrt{2} \\\\= -4(1.41) \\\\ \approx -5.6 .\end{array}
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