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 - Review Exercises - Page 41: 21

Answer

k=14

Work Step by Step

$\frac{9}{21}=\frac{6}{k}$ 9k=126 k=14

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