Answer:
Step-by-step explanation:
i have no idea but i thinkit is A.or D i think the kid is right with a different answer
happy to help
A matrix is diagonal if

In other words, you want non-zero elements only when the indices of the row and the column are the same: the first element of the first row must be non zero, the second element of the second row must be non-zero, and so on. All other elements must be zero.
-4 is the correct answer
35-12 =25
-4 - ( -27) = -4 + 27 =23
Answer:
x^6/27y^12
Step-by-step explanation:
(3. 1?x^2 y^4)^3
(3y^4/x^2)^3
witch you get x^6/27y^12
hope i helped
Answer:
1.7320508
Step-by-step explanation: