The length of a rectangle is increasing at a rate of 7 cm/s and its width is increasing at a rate of 5 cm/s. When the length is 9 cm and the width is 5 cm, how fast is the area of the rectangle increasing (in cm2/s)?

Intermediate Algebra
19th Edition
ISBN:9780998625720
Author:Lynn Marecek
Publisher:Lynn Marecek
Chapter10: Exponential And Logarithmic Functions
Section10.5: Solve Exponential And Logarithmic Equations
Problem 10.88TI: Researchers recorded that a certain bacteria population declined from 700,000 to 400,000 in 5 hours...
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The length of a rectangle is increasing at a rate of 7 cm/s and its width is increasing at a rate of 5 cm/s. When the length is 9 cm and the width is 5 cm, how fast is the area of the rectangle increasing (in cm2/s)?

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