Subscript notation is frequently used for working with larger systems of equations. Use a matrix approach to solve the system. Express the solutions as 4-tuples of the form (x1, x2, x3, x4). x1 − 3x2 − 2x3 + x4 = −6 −2x1 + 7x2 + x3 − 2x4 = −1 3x1 − 7x2 − 3x3 + 3x4 = −8 5x1 + x2 + 4x3 − 2x4 = 24 (x1, x2, x3, x4) =

Divide. write in the simplest form. 4 1/6 divided by 10

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.

What is fraction that is equivalent to 3/8