# Matrix Dimensions

Pro Problems > Math > Number and Quantity > Vectors and Matrices > Multiplication## Matrix Dimensions

When doing matrix arithmetic, determine the dimensions of my result matrix.

(A_{m x n} · B_{n2-6 x m+1 } + C_{y x 4} ) · D_{w+3 x w} = E.

Presentation mode

Problem by Mr. Twitchell

## Solution

In order to make it feasible for teachers to use these problems in their classwork, no solutions are publicly visible, so students cannot simply look up the answers. If you would like to view the solutions to these problems, you must have a Virtual Classroom subscription.Assign this problem

Click here to assign this problem to your students.## Similar Problems

### Matrix Multiplication Equation

Find the value of w in the following matrix equation:

3

x

y

2

2

2

x

y

22

-70

30

w

### Two Variable Matrix Equation

Find x if:

3

x

2

1

x

2

m

m

### Three by One Matrix

Find y if:

3

x

y

2x

-6

5

y

^{2}+ 4

### Matrix Multiplication

A =a

b

c

d

b

d

a

c

x

^{3}x

^{2}- 8x-12

5x

Find all possible values of x.

# Ask Professor Puzzler

Do you have a question you would like to ask Professor Puzzler? Click here to ask your question!**Get a**

*FREE*Pro-Membership!Educators can get a free membership simply by sharing an original lesson plan on our

*Articles for Educators*page!

Like us on Facebook to get updates about new resources