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Mathematics, 21.06.2019 19:10
Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?
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Mathematics, 21.06.2019 23:30
Astraight water slide is 175 feet above ground and is 200 feet long. what is the angle of depression to the bottom of the slide?
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Mathematics, 22.06.2019 00:30
1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?
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