Question

help with matricies please

Answer 1

the last question a and b

Answer 2

C33 refers to the element in matrix C that is in the 3rd row, 3rd column

to find C33 we first highlight the 3rd row of the left matrix and the 3rd column of the right matrix

Answer 3

okay

Answer 4

whats next? @jim_thompson5910

Answer 5

now pair up the terms like so

Answer 6

notice how the first terms -9 and 9 pair up
the second terms 7 and 1 pair up
etc etc

Answer 7

these pairs will multiply and then you'll add up the products

Answer 8

so that shows us that \[\Large C_{33} = -98\]
in other words, -98 goes in the third row, third column of the answer matrix C

Answer 9

so i have to put it into the matrice? or do i just leave it as c33=-98

Answer 10

well c33 = -98 is your final answer you report but the matrix stuff is the steps showing how you get there

Answer 11

ohhhhhh ok i get it

Answer 12

ima try to do the next 1 n you tell me if its right

Answer 13

ok

Answer 14

b should be c23

Answer 15

but i did it

Answer 16

c23=-29?

Answer 17

I see \(\Large C_{24}\) for part B

Answer 18

i know i used this from another open study question but i didnt get how they were explaining it

Answer 19

I see

Answer 20

i have all the same questions except for the last 1 on my worksheet is c23

Answer 21

yea lol

Answer 22

its -29 right ?

Answer 23

C23 is not -29

Answer 24

2*4+4*2+7*(-3)+3*(-8)=-29

Answer 25

thats what i got

Answer 26

never mind i just looked at it again

Answer 27

hold on lol

Answer 28

i got 31

Answer 29

me too

Answer 30

thank you, im sorry my internet is really bad @jim_thompson5910

Answer 31

ok cool thank you soooo much

Answer 32

\[\Large C_{23} = 31\]

and it's probably the OpenStudy website. I'm also dealing with connection issues.

Answer 33

oh okay