Question

Which product represents the solution to the system?

Answer 1

did you try it

Answer 2

I got the answer. Do you still need help? @amber96

Answer 3

yes

Answer 4

I'm still trying to figure it out

Answer 5

I'm still trying to figure it out @infinitylove

Answer 6

????

Answer 7

i think he just liked your picture hehe

Answer 8

aww geez....

Answer 9

I seriously need help

Answer 10

no funny business

Answer 11

ok, you need the answer or you are stuck somewhere in the solution

Answer 12

answer is D

Answer 13

I will attach the answer as a photo. One second @amber96

Answer 14

okay thnaks so much @surdawi

Answer 15

you know how to do it or you need help?

Answer 16

I see infitinties attachement but it still doesn't show me how to solve it.

Answer 17

@surdawi

Answer 18

answer is A

Answer 19

Click the photo

Answer 20

and @infinitylove

Answer 21

not D, i forgot the 1/2

Answer 22

okay but how did you get it.... I need to know so I won't keep asking! :D

Answer 23

If you open my attachment, I did the whole problem for you color coded and everything.

Answer 24

ooooh okay!

Answer 25

B******* damn i cant type any more what i got is [2,-.5;-1,.5]=B

Answer 26

lol okay?

Answer 27

Im a little confused by the multiple choice answers, but you are just looking for x and y, correct?

Answer 28

basically you multiply both sides by the inverse

\[\left[\begin{matrix}1 & 1 \\ 2 & 4\end{matrix}\right]^{-1}* \left[\begin{matrix}1 & 1 \\ 2 & 4\end{matrix}\right] \left(\begin{matrix}x \\ y\end{matrix}\right) = \left[\begin{matrix}1 & 1 \\ 2 & 4\end{matrix}\right]^{-1} * \left(\begin{matrix}3 \\ 2 \end{matrix}\right)\]

Answer 29

you get\[\left[\begin{matrix}2 & -1/2 \\ -1 & 1/2\end{matrix}\right]*\left(\begin{matrix}3 \\ 2\end{matrix}\right)\]

Answer 30

OMG THANKS