Determine the size of matrix A and tell whether it is a square matrix, row matrix, column matrix, or none of these.
-$$A = \left[ \begin{array} { r r r r r }
9 & - 14 & 11 & - 6 & - 11 \
- 10 & 0 & 12 & - 3 & \pi \
- 13 & - 4 & 12 & 9 & - 6 \
\sqrt { 3 } & - 14 & - 3 & 11 & 15
\end{array} \right]$$
A)4 × 5; none of these
B)5 × 4; none of these
C)4 × 4; square matrix
D)20; row matrix

Question

Determine the size of matrix A and tell whether it is a square matrix, row matrix, column matrix, or none of these.
-$$A = \left[ \begin{array} { r r r r r } 
9 & - 14 & 11 & - 6 & - 11 \
- 10 & 0 & 12 & - 3 & \pi \
- 13 & - 4 & 12 & 9 & - 6 \
\sqrt { 3 } & - 14 & - 3 & 11 & 15
\end{array} \right]$$
A)4 × 5; none of these
B)5 × 4; none of these
C)4 × 4; square matrix
D)20; row matrix

Quizplus · Accepted Answer

Matrix A has 4 rows and 5 columns, making it a 4 × 5 matrix. It is not a square matrix (because the number of rows does not equal the number of columns), a row matrix (because it has more than one row), or a column matrix (because it has more than one column).

Determine the Size of Matrix a and Tell Whether It