18 laps in 6 minuets
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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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Three coins are flipped. what is the probability that there will be at least two tails?
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Mathematics, 21.06.2019 20:30
Find the value of x. give reasons to justify your solutions! h ∈ ig
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