A girl starting at 11 A.M., travels east at 4 km/hr while a boy, starting at noon from the same point, travels north at 6 km/hr. How fast are they separating at 3 P.M.

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
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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Other Application of Differentiation 

The sum of three positive numbers is 30. The first plus twice the
second plus three times the third add up to 60. Select the numbers so
that the product of all three is as large as possible.
Transcribed Image Text:The sum of three positive numbers is 30. The first plus twice the second plus three times the third add up to 60. Select the numbers so that the product of all three is as large as possible.
A girl starting at 11 A.M., travels east at 4 km/hr while a boy,
starting at noon from the same point, travels north at 6 km/hr. How
fast are they separating at 3 P.M.
Transcribed Image Text:A girl starting at 11 A.M., travels east at 4 km/hr while a boy, starting at noon from the same point, travels north at 6 km/hr. How fast are they separating at 3 P.M.
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