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Mathematics 9 Online
OpenStudy (anonymous):

To approach a runway, a plane must begin a 7 degree descent starting from a height of 3 miles above the ground. To the nearest mile, how many miles from the runway is the airplane a the start of this approach?

jimthompson5910 (jim_thompson5910):

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jimthompson5910 (jim_thompson5910):

tan(7 degrees) = 3/x use this to solve for x

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