Answer:
I have no idea sorry :c
Step-by-step explanation:
Answer:
A and C
Step-by-step explanation:
Hope this helps
Answer: 
Step-by-step explanation:
Given the polynomial
, you can evaluate it for the given value of the variable "x" by substituting the value
into the polynomial.
Therefore, when
, you get the following result:

Answer:
60
Step-by-step explanation:
We have been given the matrix;
![\left[\begin{array}{ccc}5&8\\-5&4\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D5%268%5C%5C-5%264%5Cend%7Barray%7D%5Cright%5D)
For a 2-by-2 matrix, the determinant is calculated as;
( product of elements in the leading diagonal) - (product of elements in the other diagonal)
determinant = ( 5*4) - (8*-5)
= 20 - (-40) = 60