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July 25, 2014

Homework Help: math

Posted by HELP HELP HELP MNHS on Friday, January 11, 2013 at 6:46am.

The illumination a surface receives from a light source varies inversely with the square of the distance. A table lamp is 3ft from a certain work area. How far is another work area if it receives only 1/3 as much illumination as the first work area?

(W/ solution please, tnx...)

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