The base x of a triangle is decreasing at the rate of 5 in./sec. and the height y of the triangle is increasing at the rate of 4 in./sec. At what rate is the area A of the triangle changing when x = 4 inches and y = 3 inches

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
Chapter2: Working With Real Numbers
Section2.3: Rules For Addition
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The base x of a triangle is decreasing at the rate of 5 in./sec. and the height
y of the triangle is increasing at the rate of 4 in./sec. At what rate is the area A of the
triangle changing when x = 4 inches and y = 3 inches ?

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