Can someone explain this to me? what i need to do?
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Mathematics, 21.06.2019 13:30, love0000
The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sound is watt/m2. the level of sound in the quiet room is db, and the intensity of sound in the busy street is watt/m2. use the formula , where is the sound level in decibels, i is the intensity of sound, and is the smallest sound intensity that can be heard by the human ear (roughly equal to watts/m2).
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Mathematics, 21.06.2019 16:30, enchantednights
Look at attachment. has all info needed. need
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Mathematics, 21.06.2019 18:30, BreBreDoeCCx
Solve the system of equations y= 3/2 - 1, -x+ y =-3
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