Solve the problem.Use the formula D = 10.0 log(S/S0), where the loudness of a sound in decibels is determined by S, the number of watt/m2 produced by the soundwave, and S0 = 1.00 × 10-12 watt/m2. A certain noise produces 8.54 × 10-5 watt/m2 of power. What is the decibel level of this noise? (Round to the nearest unit.)

A. 79 decibels
B. 69 decibels
C. 8 decibels
D. 183 decibels


Answer: A

Mathematics

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