Answers: 2
Mathematics, 21.06.2019 18:30
The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.
Answers: 1
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
What is 1.2x=6? and can you show me the work?...
Mathematics, 17.05.2021 17:00
Chemistry, 17.05.2021 17:00
Mathematics, 17.05.2021 17:00
Mathematics, 17.05.2021 17:00
English, 17.05.2021 17:00
Mathematics, 17.05.2021 17:00
Business, 17.05.2021 17:00