Question

69 POINTS !!!!!!!

Which of the following describes the matrix?

[8 9 4]
[5 2 6]
[3 1 7 ]


3×3
3×9
9×3
2x3

Answer 1

Answer: Choice A) 3x3

The 3x3 refers to the number of rows and the number of columns in that order.

As another example, this matrix

`\begin{bmatrix}1 & 7 & 9\\13 & 41 & 2\\5 & 8 & 7\\92 & 3 & 5\end{bmatrix}`

is a 4x3 matrix because it has 4 rows and 3 columns.