Algebra 2 (1st Edition)

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

Chapter 13, Trigonometric Ratios and Functions - 13.6 Apply the Law of Cosines - 13.6 Exercises - Problem Solving - Page 894: 47a

Answer

See below

Work Step by Step

Using the law of cosines $d^2=^2+3^2-2\times 2 \times 3 \times\cos 60^\circ\\ d^2=7\\x=\pm \sqrt 7\\x=\sqrt 7$ The distance is 7 miles.
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