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Pre-Algebra
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OpenStudy (amber15):
the intensity I of light bulb , measured in watts per square meter (w/m^2) varies inversely as the square of the distance d from the light bulb . suppose I is 70 (w/m^2) when distance is 5m . find the intensity when the distance from the light bulb is 4 m away.
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OpenStudy (prepfortears):
i believe the intensity is 56
OpenStudy (amber15):
okay thank you
OpenStudy (amber15):
they want in a fraction
OpenStudy (prepfortears):
I'm not sure, sorry
OpenStudy (amber15):
okay Thank you though
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