Mathematics, 07.07.2021 14:00, alexsan5537
# If two vectors whose direction ratios are 1,2,3 and -k,2,1 are perpendicular to each other then, a) k=7 b) k=4 c) k=3 O d) k=6 me especially since we had be 1 poir 82) I don't know why he turned friends for so long.
Answers: 1
Mathematics, 21.06.2019 19:40, evarod
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
Mathematics, 22.06.2019 02:00, SoccerHalo
Milk and ice cream are mixed together for a recipe. the total volume of the mixture is 1 cup. if the milk contains 2% fat, the cream contains 18% fat ,and the mixture contains 6% fat ,how much cream is in the mixture
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Mathematics, 22.06.2019 04:00, SRTBANDIT6045
If y varies as x, and y=8 as x=4 what will be the value of y if x=2
Answers: 2
# If two vectors whose direction ratios are 1,2,3 and -k,2,1 are perpendicular to each other then, a...
Mathematics, 07.07.2019 22:30
Arts, 07.07.2019 22:30
Mathematics, 07.07.2019 22:30
Arts, 07.07.2019 22:30
Mathematics, 07.07.2019 22:30
Arts, 07.07.2019 22:30
Arts, 07.07.2019 22:30