Answer
True.
Work Step by Step
$-9$ is an integer, and integers are a subset of rational numbers. Therefore, $-9$ is an element in set E.
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 1 - Review - Page 43: 18
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