Multiple Choice
The loudness of a sound (measured in decibels dB) is inversely proportional to the square of the distance
from the source of the sound. Suppose a person who is 3 ft from a hair dryer experiences a sound level of 75 dB. Find the proportionality constant and write the equation that expresses the inverse proportionality.
A)
B)
C)
D)
E)
Correct Answer:

Verified
Correct Answer:
Verified
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