Please I need help with this
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Mathematics, 21.06.2019 19:10
Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15
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Mathematics, 21.06.2019 19:30
Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 25, a standard deviation of 2.5, and margin of error of 5%
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Mathematics, 21.06.2019 21:00
Timmy uses 1 1 2 cups of sugar for every 2 gallons of lemonade he makes. how many cups of sugar would timmy use if he makes 13 gallons of lemonade?
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Mathematics, 21.06.2019 22:30
Factor the polynomial, if possible. if the polynomial cannot be factored, write prime. 9n^3 + 27n^2 – 25n – 75
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