Find the dimension of the matrix.
-$$\left[ \begin{array} { r r r }
- 7 & 0 & 0 \
- 9 & - 7 & 0 \
- 2 & 4 & - 7
\end{array} \right]$$
A) 9
B) $- 7$
C) $3 \times 0$
D) $3 \times 3$

Question

Find the dimension of the matrix.
-$$\left[ \begin{array} { r r r } 
- 7 & 0 & 0 \
- 9 & - 7 & 0 \
- 2 & 4 & - 7
\end{array} \right]$$
A) 9
B) $- 7$
C) $3 \times 0$
D) $3 \times 3$

Quizplus · Accepted Answer

The dimension of a matrix is given by the number of rows by the number of columns. This matrix has 3 rows and 3 columns, so its dimension is $3 \times 3$.

Find the Dimension of the Matrix [−700−9−70−24−7]\left[ \begin{array} { r r r } - 7 & 0 & 0 \\- 9 & - 7 & 0 \\- 2 & 4 & - 7\end{array} \right]​−7−9−2​0−74​00−7​​

Find the Dimension of the Matrix $\left[ \begin{array} { r r r } - 7 & 0 & 0 \\- 9 & - 7 & 0 \\- 2 & 4 & - 7\end{array} \right]$