Math 1324 Math for Business & Soc. Science inclass quiz Sec 4.1 & 4.2 Name: Kahlea Hoover Due 9/12/2024 9/12/20 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the Solve the system of equations by substitution. 1) x+3y=-21 -6x + 4y = -28 A) (7,0) B) (1,-8) C) (0,-7) D) no s Solve the system of equations by elimination. 2) x - 5y = 35 5x - 4y = 28 A) (1,-7) Provide an appropriate response. 3) Given matrix A: 5 7-6 A = -4 9 1 What is the size of A? A) 2 × 3 4) Given the matrix B: B = What is the size of B? A) 1 x 3 B) (0,- 7) C) (7,0) D) (1 B) 3 × 3 C) 3 D B) 3 5) Write the augmented matrix for the system. 8x1 + 9x2 = 117 4x1+6x2 = 66 C) 1 x 1