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Mathematics, 24.03.2022 02:00 youngcie04
janet works at a computer supply store and earns 4.5% commission on her total sales. last week she earned $130.50 in commission. caculate her total sales for last week.
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Mathematics, 21.06.2019 19:30
Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, β3) and (β6, β3). where would the upper vertices be on the grid?
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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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janet works at a computer supply store and earns 4.5% commission on her total sales. last week she e...
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