Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 10 - Radical Expressions and Equations - 10-6 Trigonometric Ratios - Practice and Problem-Solving Exercises - Page 649: 29



Work Step by Step

Use the Cosine rule for the right triangle: adjacenthypotenuse cos(32) = 56/x Solve for x by multiplying both sides by x and dividing by cos(32): x = 56/cos(32) Use a calculator: = 66.0
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