Solve the variation problems in Exercises 77-82. The loudness of a stereo speaker
Chapter 3, Problem 80(choose chapter or problem)
Solve the variation problems in Exercises 77-82. The loudness of a stereo speaker, measured in decibels, varies inversely as the square o f your distance from the speaker. When you a re 8 feet from the speaker, the loudness is 28 decibels. What is the loudness when you a re 4 feet from the speaker?
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