The loudness of a stereo speaker, measured in decibels, varies inversely as the square of your distance

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The loudness of a stereo speaker, measured in decibels, varies inversely as the square of your distance from the speaker. When you are 8 feet from the speaker, the loudness is 28 decibels. What is the loudness when you are 4 feet from the speaker?

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College Algebra

ISBN: 9780134453262

7th Edition

Authors: Robert F Blitzer

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