(algebra one) 34

what is an equivalent equation that results from completing the square

x^2+8x+19=0

show work to get points

Identify a1 and r for the geometric sequence an= -256(-1/4) n-1

Sum is 17 and their difference is 3

Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.