Question

If matrix A has dimensions 2 x 5 and matrix B has dimensions 5 x 5, can matrix A and matrix B be multiplied?

yes

no

Answer 1

@563blackghost

Answer 2

If matrix A is (m,n) and matrix B is (n,p) then C = AB and is (m,p) dimensional , so
yes, matrix A and matrix B can be multiplied and the result is AB (2,5) dimensional.
However , BA is not possible.