An aircraft is spotted by two observers who are 1000 feet apart.As the airplane passes over the

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An aircraft is spotted by two observers who are 1000 feet apart.As the airplane passes over the line joining them, each observer takes a sighting of the angle of elevation to the plane, as indicated in the figure. How high is the airplane?

35°. 40° 1000 ft

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Precalculus

ISBN: 978-0321716835

9th edition

Authors: Michael Sullivan

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