Explanation Given : The rate of change of length and width are 8 cm / s and 3 cm / s , the value of length and width are 20cm and 10cm respectively. Calculation: The area of the rectangle is l ⋅ w , where l and b are the length and the breadth of the rectangle. Differentiate the function A = l ⋅ w with respect to time t as follows: d d t ( A ) = d d t ( l ⋅ w ) d A d t = l d w d t + w d l d t Substitute 20 for l , 10 for w , 8 for

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ISBN: 9781305177291

Author: James Stewart, Troy Day

Publisher: Cengage Learning

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Chapter 3.5, Problem 86E

To determine

The rate at which the area is increasing if length and width are 20cm and 10cm respectively.

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Chapter 3.5, Problem 85E

Chapter 3.5, Problem 87E

Chapter 3 Solutions

Biocalculus: Calculus For Life Sciences

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The rate at which the area is increasing if length and width are 20cm and 10cm respectively.

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The rate at which the area is increasing if length and width are 20cm and 10cm respectively.

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