Elementary Algebra

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

Chapter 9 - Roots and Radicals - 9.1 - Roots and Radicals - Problem Set 9.1: 84

Answer

$\approx-32.4$

Work Step by Step

Using the properties of radicals, a rational approximation (to the nearest tenth) of the given expression, $ 14\sqrt{13}-17\sqrt{13}+3\sqrt{13}-4\sqrt{13}-5\sqrt{13} ,$ is \begin{array}{l}\require{cancel} (14-17+3-4-5)\sqrt{13} \\\\= -9\sqrt{13} \\\\ \approx-32.4 .\end{array}
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