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27 August, 12:21

Amanda and Jeremiah are standing on the same side of a large lake. They are separated by a horizontal distance of 4000 ft. Both Amanda and Jeremiah can see a helicopter that is directly above the horizontal distance between them. Amanda's angle of elevation to see the helicopter is 60° and Jeremiah's angle of elevation to see it is 30°. What is the distance between jermiah and the helicopter? Round to the nearest feet

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  1. 27 August, 13:00
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    The distance between Amanda and the helicopter be x

    cos 60 = x / 4000

    x = 4000 * cos 60

    = 4000 * 1/2

    = 2000 feet
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