I'm incredibly lost as to how to solve this
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Mathematics, 21.06.2019 16:00
Determine the mean and variance of the random variable with the following probability mass function. f(x)=( 729divided by 91) (1 divided by 9) superscript x baseline comma x equals 1,2,3 round your answers to three decimal places (e.g. 98.765).
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Mathematics, 21.06.2019 18:00
!! 10 ! a westbound jet leaves central airport traveling 635 miles per hour. at the same time, an eastbound plane departs at 325 miles per hour. in how many hours will the planes be 1900 miles apart?
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Mathematics, 21.06.2019 19:00
Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !
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Mathematics, 21.06.2019 20:00
15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m
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