Answer
$(2x)^\circ=30^\circ$
$(4x)^\circ=60^\circ$
Work Step by Step
The sum of the two angles is a right angle ($90^\circ$):
$(2x)^\circ+(4x)^\circ=(7x)^\circ=90^\circ$
$6x=90$
$x=15$
$(2x)^\circ=30^\circ$
$(4x)^\circ=60^\circ$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 5 - Trigonometric Functions - 5.1 Angles - 5.1 Exercises - Page 504: 25
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