In a talent competition, half of the contestants are eliminated in each round. at the end of the nth round, 32 contestants remain. if there were 1,024 contestants at the start of the competition, what is the value of n?

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.

The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?

You use technology ans find a sum of 6.712e-8. write this sum in standard form