70 .15 .30 150,000 .20 .80 .20 100,000 .10 .05 .50 50,000 The vector x is called the state vector for the begin ning of the year. Calculate Px and Px and interpre the resulting vectors. P = 58. Let A = [12] 3 4 and x = a b = [6] c d a) Find all matrices B: such that AB=BA. b) Use the results of part (a) to exhibit (2 x 2) matrices B and C such that AB = BA and ACCA