Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 10 - Exponents and Radicals - 10.8 The Complex Numbers - 10.8 Exercise Set - Page 687: 110


$10 \text{ units} $

Work Step by Step

Using $|a+bi|=\sqrt{a^2+b^2},$ then the given expression, $ |8-6i| ,$ is equal to \begin{array}{l}\require{cancel} \sqrt{8^2+(-6)^2} \\\\= \sqrt{64+36} \\\\= \sqrt{100} \\\\= 10 \text{ units} .\end{array}
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