Help Please! I know how to find a median, but I dont understand how to use variables. <3

in accending order

19, w, 36,55,72

so 19>w<36

therefore,

24 is the answer

D) All of the choices

In other words, all of the above.

Explanation:

Since matrix A, B, and C are all the same size (3 by 3), this means we can add them. Addition is defined. Multiplication is also defined in this case.

A few of the many properties of matrix addition and multiplication are

Matrix addition is associative, meaning A+(B+C) = (A+B)+C so we can group the matrices however we want.Matrix multiplication is also associative, so A*(B*C) = (A*B)*CMatrix distribution is possible: A*(B+C) = A*B+A*C

Keep in mind that the last property is not the same as (B+C)*A because the order of multiplication matters. A*B is not the same as B*A.

Based on those points above, we can see that all statements your teacher mentioned are true ones.