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Mathematics, 21.06.2019 13:30
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 17:30
One positive number is 9 more than twice another. if their product is 95, find the numbers
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Mathematics, 21.06.2019 20:10
What additional information could be used to prove abc =mqr using sas? check all that apply.
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Dos anyone know how much a is 2(a+7)-7=9...
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