Mathematics, 28.01.2020 02:31 noahrdavila1978
Ruth bought cutter s and screwdrivers to upgrade the computers in her company. a cutter costs 15.2$ and a screw driver costs $2. she bought a total of 29 tools and spent 150.40$. how many of each tool did ruth buy?
Answers: 1
Mathematics, 21.06.2019 17:30
What is the number 321,000,000 in scientific notation? also what is the number? ?
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Write an equation for the function that includes the points (1,4/5) and (2,2/3)
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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.
Answers: 3
Ruth bought cutter s and screwdrivers to upgrade the computers in her company. a cutter costs 15.2$...
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