Matrix x is shown below.

if matrices x and y are equal, what is the value of y12+y13+y32+y33?
7.5
27
40
49.5

option C

40

Step-by-step explanation:

here n = number of row

        m = number of column

so the labelled 3x3 matrix would be like this

Given in the question matrixX since matrixY is eaxctly same as matrixX so,  

so

y12 = 6

+

y13 = -7

+

y32 = 14

+

y33 = 27

=

40

5/6

step-by-step explanation:

if i remember correctly with perpendicular stuff you just take away the negative

the answers are in the images, i received 100% on this assignment. hope this !