Answer
40$^{\circ}$ and 50$^{\circ}$
Work Step by Step
3x - 5 + 6x - 40 = 90$^{\circ}$
9x - 45$^{\circ}$ = 90$^{\circ}$
9x = 135$^{\circ}$
x = 15$^{\circ}$
3x-5= 40$^{\circ}$ and 6x-40= 50$^{\circ}$
Trigonometry (10th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
0321671775
ISBN 13:
978-0-32167-177-6
Chapter 1 - Trigonometric Functions - Section 1.1 Angles - 1.1 Exercises - Page 7: 22
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