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Mathematics, 21.06.2019 20:00
He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean and standard deviation according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%
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Mathematics, 21.06.2019 21:30
In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.
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Mathematics, 21.06.2019 23:30
Solve the following: 12(x^2โxโ1)+13(x^2โxโ1)=25(x^2โxโ1) 364xโ64x=300x
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What property is illustrated by 45+19=19+45...
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