Question 389283
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Hi
If I am understanding your question properly

[A]={{{(matrix(3,2,2,-4,3,1,-1,0))}}}
[B]={{{(matrix(1,3,-2,5,0))}}}
a) give the dimensions of A:  3x2 ( 3 rows and 2 columns)
b) give the dimensions of B:  1x3 ( 1 rows and 3 columns)

1.can you multiply A x B? Yes (B has the same # of columns as A has rows)
2.if so, what are the dimensions of the result  1x2
3.give the result if possible.
-2*2 + 5*3 + 0*-1 = 11
-2*-4 + 5*1 +0*0  = 13
[B]x[A] = [11 13]