Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 1 - Section 1.7 - Properties of Real Numbers - Exercise Set: 102

Answer

Not commutative

Work Step by Step

The actions are not commutative, because one must turn on the cell phone before dialing a number, and not the other way around.
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