A plane flying at an altitude of 20 km is at a diroct distance D-4.0+ x from an girport control tower, where x s the horizontul distance to the lower f Uho plare's speed is 320 km/h, how fast is D changing when x98 kr D s changing at a rate of km/h (Do not round unti the final answor Then round to the nearest ten as heeded.)

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
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Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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A plane flying at an altitude of 20 km is at a direct distance D-4.0 + x from an airaort control tower, where xis the horizontal distance to the ldower If Uho plare's speed is 320 km/h, how fast is D changing when x=98 km?
Ds changing at a rate of km/h.
(Do not round untl the final answor Then round to the nearest ten as needed.)
Transcribed Image Text:A plane flying at an altitude of 20 km is at a direct distance D-4.0 + x from an airaort control tower, where xis the horizontal distance to the ldower If Uho plare's speed is 320 km/h, how fast is D changing when x=98 km? Ds changing at a rate of km/h. (Do not round untl the final answor Then round to the nearest ten as needed.)
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