In a trend that scientists attribute, at least in part, to global warming, a certain floating cap of sea ice has been shrinking since 1980. The ice cap always shrinks in the summer and grows in winter. Average minimum size of the ice cap, in square miles, can be approximated by A = ar. In 2013, the radius of the ice cap was approximately 796 mi and was shrinking at a rate of approximately 4.7 mi / yr. How fast was the area changing at that time? The area was changing at a rate of V in 2013. (Round to the nearest integer as needed.)

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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In a trend that scientists attribute, at least in part, to global warming, a certain floating cap of sea ice has been shrinking since 1980. The ice cap always shrinks in the summer and grows in winter.
Average minimum size of the ice cap, in square miles, can be approximated by A= ar. In 2013, the radius of the ice cap was approximately 796 mi and was shrinking at a rate of approximately
4.7 mi / yr. How fast was the area changing at that time?
The area was changing at a rate of
V in 2013.
(Round to the nearest integer as needed.)
Transcribed Image Text:In a trend that scientists attribute, at least in part, to global warming, a certain floating cap of sea ice has been shrinking since 1980. The ice cap always shrinks in the summer and grows in winter. Average minimum size of the ice cap, in square miles, can be approximated by A= ar. In 2013, the radius of the ice cap was approximately 796 mi and was shrinking at a rate of approximately 4.7 mi / yr. How fast was the area changing at that time? The area was changing at a rate of V in 2013. (Round to the nearest integer as needed.)
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