Calculus: Early Transcendentals
8th Edition
ISBN: 9781285741550
Author: James Stewart
Publisher: Cengage Learning
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A person 6 feet tall is walking away from a lamp post at the rate of 48 feet per minute. When the person is 12 feet from the lamp post, his shadow ( the dashed line ) is 15 feet long. Find the rate at which the length of the shadow is increasing when he is 24 feet from the lamp post.
The length of the shadow is increasing at a rate of how many feet per minute?
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