Question

Tell whether the product AB is defined for A4x5 and B5x3. If yes, give the product's dimensions as the following example: 2x3. If no, write no in the box.

Answer 1

@nincompoop

Answer 2

@e.cociuba

Answer 3

@Nurali

Answer 4

@Jack172 Talk to me here. The chat is moving too fast. All I know is what you see is what you get. There is no other questions or anything.

Answer 5

@GoldEverything Know this stuff?

Answer 6

where did you get this problem from?

Answer 7

My school.. Online school.

Answer 8

What is it you are studying?

Answer 9

Algebra 2 A

Answer 10

can you define what " A4x5" and "B5x3" represent?

Answer 11

No idea.
I'll screenshot it.

Answer 12

What is A? a variable and does x denote multiplication?

Answer 13

Are these matrices?

Answer 14

Yes.

Answer 15

the product of two matrices is only defined if the rows if the rows in the first matrix are the same as the number of columbs in the second matrix

Answer 16

That is what I thought but when I answered "no" in the box it told me that was incorrect.

Answer 17

Well I don't normally use linear algebra, so I would say that is correct, I don't know I guess you could look up matrices on wikipedia or matrix multiplication.

Answer 18

Thank you. :)