# Math

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**Help!!** on
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On th decibel scale, the loudness of a sound, in decibels, is given by

D=10log(I/I0), where I is the intensity of a sound barely audible to the human ear. If the intensity of a sound is 10^11I0, what is the loudness in decibels? (please note the I0 is supossed to be I lower 0.