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Mathematics, 21.06.2019 17:00
Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?
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Mathematics, 21.06.2019 19:40
Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.
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Mathematics, 21.06.2019 23:00
12 out of 30 people chose their favourite colour as blue caculate the angle you would use for blue on a pie chart
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Mathematics, 21.06.2019 23:30
Petes dog weighed 30 pounds it then lost 16% of it's weight how much did pete lose
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Solve the right triangle shown in the figure
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