Question

For exercises 26 and 27, use the advertisement shown at the right.

What are the dimensions of the matrix?

Short answer

The dimensions of matrix are $\mathbf{3}\mathbf{\times }\mathbf{3}$.

Step-by-step solution

– Description of step.

Matrix is an ordered rectangular arrangement of numbers in horizontal rows and vertical columns enclosed in brackets.

– Description of step.

Let three columns stands for Evening, Matinee and twilight shows respectively and three rows stands for prices of movie tickets for adult, child and senior.

– Description of step.

Write a matrix for the prices of movie tickets for adults, children, and seniors.

$\left[\begin{array}{ccc}7.50& 5.50& 3.75\\ 4.50& 4.50& 3.75\\ 5.50& 5.50& 3.75\end{array}\right]$

– Description of step.

Write the dimension of the matrix.

The matrix in the step 3 has $3$rows and $3$columns, the dimensions of matrix are $3\times 3$.

Therefore, the dimensions of matrix are $3\times 3$.