Answer:
(A+B)(A+B)=A.A+B.A+A.B+B.B
Step-by-step explanation:
Given that matrices A and B are nxn matrices
We need to find (A+B)(A+B)
For understanding the multiplication of matrices let'take A is mxn and B is pxq matrices,we can multiple only when n=p,so our Ab matrices will be mxq.
We know that that in matrices AB is not equal to BA.
Now find
(A+B)(A+B)=A.A+B.A+A.B+B.B
So from we can say that (A+B)(A+B) is not equal to A.A+2B.A+B.B because AB is not equal to BA in matrices.
So (A+B)(A+B)=A.A+B.A+A.B+B.B
Answer:
C. 6
Step-by-step explanation:
It is given that the rectangles in the figure are similar.
<em>Thus, the corresponding sides of the two rectangles will be equal.</em>
So, we get,
i.e. 
i.e. 
i.e. 
i.e. x = 6.
Hence, the value of x is 6.
Answer:
Step-by-step explanation:
c
To find the volume of something (freezer in this case) use the formula
Length x width x height
72.5 x 24.5 x 36 = <span>63945
63945 is your answer (if it is inch</span>²)
if not, you will have to use proportions to change it to the correct one
hope this helps
