Robert just got his first job and is saving 45 dollars a week. he also has 155 dollars saved from his birthday that just passed. to see how much money he will have in his bank account robert came up with the following expression 45w+155, where w is the number of weeks that he has been saving. exactly how much will he have saved in 6 weeks?

Find the value of x. give reasons to justify your solutions! l, m ∈ kn

What is the measure of angle x? answer

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.