I will whoever answers this first aha
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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, 21.06.2019 20:00, brevenb375
What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.
Answers: 1
Mathematics, 21.06.2019 21:00, alexahrnandez4678
Dean and karlene get paid to write songs. dean is paid a one-time fee of $20 plus $80 per day. karlene is paid a one-time fee of $25 plus $100 per day. write an expression to represent how much a producer will pay to hire both to work the same number of days on a song.
Answers: 1
Mathematics, 21.06.2019 22:10, alishadautreuil
In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2
Answers: 3
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