Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 13, Trigonometric Ratios and Functions - 13.4 Evaluate Inverse Trigonometric Functions - 13.4 Exercises - Mixed Review - Page 830: 51

Answer

7.5

Work Step by Step

Solving the equation for x, we find: $$2x=10(x-6) \\ 2x=10x-60 \\ -8x=-60 \\ x=7.5$$ Checking this solution by plugging it back in, we find that the solution is correct.
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