College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter 1, Equations and Graphs - Section 1.8 - Solving Absolute Value Equations and Inequalities - 1.8 Exercises - Page 153: 57


(a) $|x-0.020|\leq 0.003$ (b) $0.017\leq x\leq 0.023$

Work Step by Step

(a) If $x$ is the thickness of the laminate, then: $|x-0.020|\leq 0.003$ Since $0.003$ represents the "error" or tolerance from the goal of $0.020$. (b) $|x-0.020|\leq 0.003$ $-0.003\leq x-0.020\leq 0.003$ $ 0.017\leq x\leq 0.023$
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