Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 6 - P.S. Problem Solving - Page 505: 5a



Work Step by Step

Let $\theta$ be the angle between $d$, the hypotenuse, and the vertical side of the right triangle: $\theta=90°-39°=51°$ $cos~\theta=\frac{adj}{hyp}$ $cos~51°=\frac{3000}{d}$ $d=\frac{3000}{cos~51°}\approx4767$
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