If a number a is chosen at random from the set of positive integers less than 20, then what is the
probability that
12
>a?
a
A. 12
19
B. 3
5
C. 7
19
D. 3
19
Glo Glukom

Me asap on # : explain how factoring a trinomial, ax^2+ bx+ c, when a does not equal 1 different from factoring a trinomial when a = 1.

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.

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2