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The decibel level of a sound is given by the equation D = 1010810 ( where / is the sound's intensity and lo corresponds to the intensity of the weakest sound that can be detected by the human ear. A sound of 140 decibels produces pain in the average human ear. Approximately how many times greater than / must the intensity / of a sound be to reach this decibel level? A. 22026 times greater B. 14 times greater

The decibel level of a sound is given by the equation D = 1010810 ( where / is the sound's intensity and lo corresponds to the intensity of the weakest sound that can be detected by the human ear. A sound of 140 decibels produces pain in the average human ear. Approximately how many times greater than / must the intensity / of a sound be to reach this decibel level? A. 22026 times greater B. 14 times greater

Algebra: Structure And Method, Book 1
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
Chapter12: Quadratic Functions
Section12.8: Joint And Combined Variation
Problem 10P
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The decibel level of a sound is given by the equation D = 1010810 (1) where is the sound's intensity and lo corresponds to the intensity of the weakest sound that can be detected by the human ear. A sound of 140 decibels produces pain in the average human ear. Approximately how many times greater than / must the intensity / of a sound be to reach this decibel level? A. 22026 times greater B. 14 times greater C. 1.14612 times greater D. 2.63906 times greater E. 1014 times greater
Transcribed Image Text:The decibel level of a sound is given by the equation D = 1010810 (1) where is the sound's intensity and lo corresponds to the intensity of the weakest sound that can be detected by the human ear. A sound of 140 decibels produces pain in the average human ear. Approximately how many times greater than / must the intensity / of a sound be to reach this decibel level? A. 22026 times greater B. 14 times greater C. 1.14612 times greater D. 2.63906 times greater E. 1014 times greater
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