Question

Helpp? Checking answers I don't think it's c or d I need some explaning

Answer 1

I actually think it is D but I am not an expert on these kind of questions

Answer 2

Could you explain?

Answer 3

I just added the numbers 3+-5 is equal to 3-5 which is -2
-4+5 is equal to 5-4 which is 1
and -4+9 is equal to 9-4 which is 5

Answer 4

Well I got D also can you help me with this one?

Answer 5

sure

Answer 6

I am not sure on this one but would you like me to try to get an expert?

Answer 7

Ok

Answer 8

ok brb while I find an expert

Answer 9

@cwrw238 @.Sam.

Answer 10

You'll need to first multiply the 2 matrices together. Actually you will only be interested in the first column of your resultant matrix after multiplying

Answer 11

Do you know how to multiply them and get the first column?

Answer 12

Sort of..

Answer 13

First column will be:
4(3) + 6(3) + 1(2)
5(3) + 3(3) + 1(2)
3(3) + 3(3) + 1(2)

Answer 14

So what are the 3 numbers in the first column?

Answer 15

By the way I got those numbers by reading across the rows of the first matrix and down the 1st column of the 2nd matrix.

Answer 16

32
26
20

those are the numbers in the first column

Answer 17

kelseymarish...are you following?

Answer 18

I am I was lost for a second

Answer 19

To get the total cost of 1 batch from company X, just add up those 3 numbers

Answer 20

78?

Answer 21

yes. so thats the cost of 1 batch. so the cost of 100 batches is?

Answer 22

Oh 7800 thank you how do you find the three numbers in the first column

Answer 23

4(3) + 6(3) + 1(2)
5(3) + 3(3) + 1(2)
3(3) + 3(3) + 1(2)

Answer 24

n the first row...the 4 6 and 1 come from the first row of the 1st matrix.
the 3 3 and 2 come from the first column of the 2nd matrix.

Answer 25

Okay, thank you guys.

Answer 26

no problem