Solve this plz
A) 9(x + 4) = 27
B) x/3 - 5 = 6
c) 15 + 3 ( x -7 ) = -30
THX...
Mathematics, 28.02.2020 18:52, danee376
Solve this plz
A) 9(x + 4) = 27
B) x/3 - 5 = 6
c) 15 + 3 ( x -7 ) = -30
THXXZ
Answers: 2
Mathematics, 21.06.2019 18:40, calebhoover03
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?
Answers: 1
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