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Mathematics, 20.06.2019 18:04
The sum of the product of 4 and x and the product of 7 and y is 61. the sum of the product of 12 and x and the product of 21 and y is 61. what are the values of x and y?
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Mathematics, 21.06.2019 19:30
Okay so i didn't get this problem petro bought 8 tickets to a basketball game he paid a total of $200 write an equation to determine whether each ticket cost $26 or $28 so i didn't get this question so yeahyou have a good day.
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Mathematics, 21.06.2019 19:30
Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?
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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.
Answers: 3
Social Studies, 29.07.2019 11:30
Mathematics, 29.07.2019 11:30
Social Studies, 29.07.2019 11:30
Mathematics, 29.07.2019 11:30
Chemistry, 29.07.2019 11:30
English, 29.07.2019 11:30
Social Studies, 29.07.2019 11:30
Social Studies, 29.07.2019 11:30