Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10:
ISBN 13:

Chapter 9 - Basic Algebra - 9.1 Signed Numbers - 9.1 Exercises - Page 629: 33

Answer

-18

Work Step by Step

The absolute value of a number is the distance between that number and 0 on the number line. Therefore, absolute value will always be positive, because distance can only be a positive measurement. $|-18|=18$, because -18 is 18 spaces from 0 on the number line Therefore, $-|-18|=-1(18)=-1\times18=-18$.
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