Homework Help: Grade 11 Math

Posted by Tim on Tuesday, September 25, 2012 at 9:37am.

Here's the question:
You are attending a very loud concert. To avoid permanent ear damage, you decide to move farther from the stage. Sound intensity is given by the formula:
I = k/d squared
K= constant
D = distance from the listener to the source of sound.

Determine an expression for the decrease in sound intensity if you move x metres farther from the stage.

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