86. Healing wound. The circular area A, in square centime- ters, of a healing wound is approximated by A(r) = 3.14r?, where r is the wound's radius, in centimeters. a) Find the rate of change of the area with respect to the radius. b) Find A'(3). c) Explain the meaning of your answer to part (b).
86. Healing wound. The circular area A, in square centime- ters, of a healing wound is approximated by A(r) = 3.14r?, where r is the wound's radius, in centimeters. a) Find the rate of change of the area with respect to the radius. b) Find A'(3). c) Explain the meaning of your answer to part (b).
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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Transcribed Image Text:86. Healing wound. The circular area A, in square centime-
ters, of a healing wound is approximated by
A(r) = 3.14r?,
where r is the wound's radius, in centimeters.
a) Find the rate of change of the area with respect to the
radius.
b) Find A'(3).
c) Explain the meaning of your answer to part (b).
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