Posted by Cassie on .
1. What is the solution of the matrix equation?
9 4 9 6
  X = 
2 1 1 8
A.) 5 26
9 60
B.) 5 26
1 8
C.) 5 26
9 60
D.) 9 26
9 1
I think the Answer is B. But I am unsure.
Thanks.

Math 
Steve,
Assuming you mean matrices and not determinants, take a look at
http://www.wolframalpha.com/input/?i={{9%2C4}%2C{2%2C1}}+*+{{9%2C6}%2C{1%2C8}}
The result is not one of your answers, so there's a typo somewhere. You can easily adjust the numbers on that web page, till things turn out right.