Answers: 1
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 15:30
When i add money am i supposed to make it like this 7+12 or 7.00+12.00 because i got 19 dollars for my answer
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Mathematics, 21.06.2019 16:30
What is the equation of a vertical line passing through the point (β5, β1)? y = β5 y = β1 x = β5 x = β1
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Mathematics, 21.06.2019 19:30
Need now max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about maxβs data must be true? a) the median of maxβs data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.
Answers: 1
Given f(x) =5 - 3x, if f(x) = -19, find x...
Mathematics, 25.10.2020 04:50
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Mathematics, 25.10.2020 04:50