Precalculus(NEED HELP ASAP PLEASE!!)
posted by jh on .
NEED HELP ASAP PLEASE!!
A high sound level of 120 dB is regarded as the threshold of pain for the average listener. If the threshold of hearing is 10^−12 watts/m^2, then the intensity of the sound corresponding to 120 dB is
This is a standard formula.
10log(120/10^-12) = 140.7918125
But its incorrect :(
what am I doing wrong ?