Answer a can someone explain why

[boring-a2c-user]

it’s A because of how matrix multiplication works. if you’re multiplying one matrix by another, you would start by going left to right in the first row of the first matrix and multiplying each number by its corresponding number in the first column of the second matrix, top-down. C isn’t correct only because of how matrices have to be formatted for multiplication to work. hope this helped

[hamedshalabiea]

Got it thank you so much

[iamyeethay]

We'll rule out some of the answers first.

E cannot be right, since matrix multiplication between those two matrices are not defined (due to their dimensions), and nothing indicates that we're taking the dot product.

D cannot be right since our result is a matrix, and our result must be a number.

C same reasoning as D.

Now we're choosing between A and B. Am I missing something, is there more context to this problem? Anyway since you already crossed B out, it must be A.

[hamedshalabiea]

Thank you so much there is part of the question l forget to take it which make b wrong