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If l represents the intensity of light which has penetrated water to a depth of x feet, then the rate of change of l is proportional to 1. If l at depth 30 feet is 4/9 the intensity at the surface, a. What percent of the intensity of light at the surface penetrated at depth 75 feet? b. What percent of the intensity of light at the surface penetrated at depth 100 feet?

If l represents the intensity of light which has penetrated water to a depth of x feet, then the rate of change of l is proportional to 1. If l at depth 30 feet is 4/9 the intensity at the surface, a. What percent of the intensity of light at the surface penetrated at depth 75 feet? b. What percent of the intensity of light at the surface penetrated at depth 100 feet?

College Algebra
College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter2: Functions And Their Graphs
Section: Chapter Questions
Problem 47CT
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Ifl represents the intensity of light which has penetrated water to a depth of x feet, then the rate of change of l is proportional to 1. If l at depth 30 feet is 4/9 the intensity at the surface, a. What percent of the intensity of light at the surface penetrated at depth 75 feet? b. What percent of the intensity of light at the surface penetrated at depth 100 feet?
Transcribed Image Text:Ifl represents the intensity of light which has penetrated water to a depth of x feet, then the rate of change of l is proportional to 1. If l at depth 30 feet is 4/9 the intensity at the surface, a. What percent of the intensity of light at the surface penetrated at depth 75 feet? b. What percent of the intensity of light at the surface penetrated at depth 100 feet?
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