Adding, Subtracting and Scaling Matrices Worksheet with Answer Key

What's on the worksheet

1. Let A = \begin{bmatrix} 3 & -2 & 5 \\ 0 & 4 & -1 \end{bmatrix} \qquad B = \begin{bmatrix} -6 & 1 & 2 \\ 3 & -5 & 7 \end{bmatrix} \qquad C =…
   A + BA - 2BB + C-4C2A + 3B
2. Solve for the matrix X:
3. Find x and y so that 2\begin{bmatrix} x & 3 \\ y & 1 \end{bmatrix} - \begin{bmatrix} y & 4 \\ x & -3 \end{bmatrix} = \begin{bmatrix} 1 & 2 \\ 13 & 5…
5. A hardware store keeps its paint stock as a matrix, with rows white, gray, blue and columns quart cans, gallon cans.
6. Maya is asked to find 2A - 3B for A = \begin{bmatrix} 1 & -4 \\ 5 & 2 \end{bmatrix} \qquad B = \begin{bmatrix} 3 & -2 \\ -1 & 0 \end{bmatrix} Her…
7. Let A = [a_ij], B = [b_ij] and C = [c_ij] be m × n matrices.