Trigonometry (10th Edition)

Published by Pearson
ISBN 10: 0321671775
ISBN 13: 978-0-32167-177-6

Chapter 1 - Trigonometric Functions - Section 1.1 Angles - 1.1 Exercises: 22

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$^{\circ}$
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