A rectangle has a length of 4 inches and a width of 12 inches whose sides are changing. The length is decreasing by 5 in/sec and the width is shrinking at 9 in/sec. What is the rate of change of the perimeter?

A rectangle has a length of 4 inches and a width of 12 inches whose sides are changing. The length is decreasing by 5 in/sec and the width is shrinking at 9 in/sec. What is the rate of change of the perimeter?

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter1: Equations, Inequalities, And Mathematical Modeling

Section1.1: Graphs Of Equations

Problem 9ECP

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Question

A rectangle has a length of 4 inches and a width of 12 inches whose sides
are
changing. The length is decreasing by 5 in/sec and the width is shrinking at 9 in/sec.
What is the rate of change of the perimeter?
Answer:
in
Submit Answer
sec
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