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Mathematics, 21.06.2019 18:40
2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?
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Mathematics, 21.06.2019 23:00
Solve the system of equations using the substitution method. {y=−3x+7x=−2y−16 enter your answers in the boxes.
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Mathematics, 21.06.2019 23:00
Find the distance between c and d on the number line c=3 and d=11
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