melody01phillips melody01phillips
  • 11-05-2017
  • Mathematics
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A road has an incline of 10°. To the nearest foot, find the increase in altitude of a car after driving 4,000 feet along the road.

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irspow
irspow irspow
  • 11-05-2017
sinα=a/d, α=incline angle, a=altitude, d=distance along road so:

a=dsinα, we are told that α=10°, d=4000 

a=4000sin10 ft

a≈694.6 ft  (to nearest tenth of a foot)
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