Multiple Choice
Solve the problem.
-The intensity of light from a light source varies inversely as the square of the distance from the source. Suppose the the intensity is 40 foot-candles at a distance of 10 feet. What will the intensity be at a distance of 23 feet? Round your answer to the tenths place.
A) 7.3 foot-candles
B) 7.8 foot-candles
C) 7.0 foot-candles
D) 7.6 foot-candles
Correct Answer:
Verified
Correct Answer:
Verified
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