8) Darryl charges his phone midday, but it's taking longer than expected. After plugging it in, 2 hours later his phone is at 35%. Then 6 hours after
plugging it in he checks again and sees it is at 95%. Find the rate at which
Darryl's phone charges. *

Segment xy is dilated through point m with a scale factor of 2. which segment shows the correct result of the dilation

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.

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b