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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 18:00
Ammonia molecules have three hydrogen atoms and one nitrogen atom.how many of each atom arein five molecules of ammonia
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Mathematics, 21.06.2019 23:00
Eric drove 275 miles in 5 hours. at the same rate how long would it take him to drive 495 miles?
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Mathematics, 22.06.2019 00:30
Graph a point. start at your origin, move left 10 units, and then move up three units which ordered pair is the point you graphed
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