Mathematics, 05.03.2021 16:10, Kurlyash
URGENT PLS HELP 200 cross-country runners were surveyed about how many hours they spend per week training. The mean was 12 hours per week and there was a standard deviation of 2 hours per week. How many cross-country runners spend between 10 and 16 hours a week in training?
Answers: 2
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Mathematics, 21.06.2019 15:30, ayoismeisalex
Kylie explained that (-4x+9)^2 will result in a difference of squares because (-4x+9)^2 (-4x+9)^2 =(-4x)^2+(9)^2=16x^2+81
Answers: 3
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200 cross-country runners were surveyed about how many hours they spend per week tr...
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