The length of a rectangle is increasing at a rate of 8cm/s and its width is increasing at a rate of 4cm/s. When the length is 20cm and the width is 20cm, how fast is the area of the rectangle increasing?
The length of a rectangle is increasing at a rate of 8cm/s and its width is increasing at a rate of 4cm/s. When the length is 20cm and the width is 20cm, how fast is the area of the rectangle increasing?
Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter12: Quadratic Functions
Section12.6: Solving Problems Involving Quadratic Equations
Problem 1.1E
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The length of a rectangle is increasing at a rate of 8cm/s and its width is increasing at a rate of 4cm/s. When the length is 20cm and the width is 20cm, how fast is the area of the rectangle increasing?
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