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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 15:00
Abag contains 3 red marbles 4 white marbles and 5 blue marbles if one marble is drawn from the bag what is the probability that the marble will be blue
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Mathematics, 22.06.2019 00:30
Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cot of 61.6
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Which line is best model for the data in the scatter plot
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