 , 13.05.2021 23:10 doggosbepis    ### Another question on Mathematics 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). Mathematics, 21.06.2019 19:30
For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number? Mathematics, 21.06.2019 19:30
Weekly wages at a certain factory are normally distributed with a mean of \$400 and a standard deviation of \$50. find the probability that a worker selected at random makes between \$450 and \$500 Mathematics, 22.06.2019 00:40
Calculate the effective quarterly compound interest rate equivalent to a 1% of monthly compound interest rate.
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