Spring Final ALGEBRA 2 MATRICES Simplify. Write "undefined" for expressions that are undefined. -3 1 ) 2) 4 + 15 -15 A B -12 -12 -15 -15 A) 28 B) 16 15 C) Undefined D 12 15 12 -12 C) -28 D) 28 0 -4 4 ) N -20 -8 undefined A 22 31 N A 15 -20 -32 B -26 -11 22 38 -1 -22 -20 C 9 11 -10 -38 B) -26 -11 12 - 8 D -10 -8 -10 2 C) 15 -26 -1 -22 D) 15 7 26 11 Evaluate each determinant. -2 -2 -2 5) -1 5 6) 2 -5 4 A) -8 B) -9 C) -11 D) 11 A) -90 \\ B) 210 C) -210 D) -186 Use Cramer's Rule to solve each system. 7) 3x -2y-2=-9 -6x + 5y = 11 x + 32 = 11 A) (-1, 1, 4) B) (-2, 1, -4) C) (1, -2, -4) D) (0, -5, 2)