Solve the following quadratic equation by completing the square. Solutions should be completely simplified and exact (do not round). y = x^2 – 8x - 8

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?

What is the effect on the graph of the function f(x) = x2 when f(x) is changed to f(x) − 4?