Answer
False.
If $a\gt0$ and $b\lt0$, then $ab\lt0$.
Work Step by Step
If $a\gt0$, then $a$ is positive. If $b\lt0$, then $b$ is negative. The product of a positive and a negative is negative.
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Prerequisites - P.1 - Review of Real Numbers and Their Properties - Exercises - Page 13: 74
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