Solve the problem.Sound levels in decibels can be computed by f(x) = 10log(x/So), where x is the intensity of the sound in watts per square meter and So = 1.00 x 10-12 watt/m2. A certain noise produces 3.95 x 10-4 watt/m2 of power. What is the decibel level of this noise? (Round to the nearest decibel)
A. 198 decibels
B. 86 decibels
C. 76 decibels
D. 9 decibels
Answer: B
Mathematics
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? 
A. - 
B. 
C. 
D. -12
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Mathematics