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boopie
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An airplane flying at an altitude of 40,000 feet passes directly over a fixed object on the ground. One minute later, the angle of depression of the object is 40°. Approximate the speed of the airplane to the nearest mile per hour.
 one year ago
 one year ago
boopie Group Title
An airplane flying at an altitude of 40,000 feet passes directly over a fixed object on the ground. One minute later, the angle of depression of the object is 40°. Approximate the speed of the airplane to the nearest mile per hour.
 one year ago
 one year ago

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mark_o. Group TitleBest ResponseYou've already chosen the best response.0
tan40=40,000/d d=40000/tan40=47,670.14 feet now speed v =d/t 47670.14 feet 1 mile 60 min v=  x  x  1 min 5280 feet 1 hour v= 541.71 mph approx ans..
 one year ago
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