Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 9 - Basic Algebra - 9.2 Adding and Subtracting Signed Numbers - 9.2 Exercises - Page 642: 72

Answer

(a) subtract (b) negative number (c) additive inverse; negative number

Work Step by Step

(a) In the phrase $6-9$ the "-" sign indicates a subtraction operation because it is written between two numbers. (b) In the phrase $(-9)$ the "-" sign indicates a negative number. There is no minuend to indicate a subtraction operation. (c) In the phrase $-(-2)$ the first "-" sign indicates the additive inverse of the number that is in parentheses. The second "-" sign indicates a negative number. There is no minuend to indicate a subtraction operation.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.