Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter P - Section P.9 - Linear Inequalities and Absolute Value Inequalities - Exercise Set - Page 137: 24

Answer

$(4,\infty)$

Work Step by Step

The symbol $\cap $ indicates an intersection of sets (of intervals). Graph each interval and find the intersection (the set containing numbers that belong to both intervals).
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