Solve the problem.
-Use the formula 
, where the loudness of a sound in decibels is determined by I, the number of 
produced by the soundwave, and 
A certain noise measures 117 decibels. If the intensity is multiplied by 1000, how many decibels will the new noise measure?
A) 117,000 decibels
B) 147 decibels
C) 120 decibels
D) 351 decibels
Correct Answer:
Verified
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-4x = 16
A) 3
B) 4
C)
-In a study by psychologists
-log4 (x - 3) +
-How long will it take for the
