Suppose that u and v are two vectors with |u| = 1, |v| = 3 and u · v = −2. a. Compute |u + v|. b. Compute |(u + 2v) × v|

Awrestling tournament begins with 128 competitors. in the first round, each competitor has 1 match against another wrestler. the winner of each match moves on to the next round until there is a winner. write a sequence in which the terms represent the number of players still in the tournament at the end of each round. describe the sequence? how many rounds are in the tournament?

If you are just building your payment history, how many points from a perfect score will you possibly miss?

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?