Answer:
3
Step-by-step explanation:
A + B is calculated by adding the same positions in both matrices.
and position (2, 3) in A+B is therefore the sum of position (2, 3) in A plus the position (2, 3) in B, which is then
-4 + 7 = 3
Answer:
C
Step-by-step explanation:
CMF is easy though.
There are no negative signs. so A and B is excluded
Divide the x+5 in the trinomial so u can get the CMF of the equation
The answer to The solution is2x- 5y=-21
Answer:
(8, 15]
Step-by-step explanation:
If ∠A is bigger than 90 then that means 12x-6 > 90
12x > 96
x > 8
and we know that the angle must be between 0 and 180. so 12x < 186
x <= 15
Answer:
maximum value at (5, 9 )
Step-by-step explanation:
The vertex is the point on the graph where it goes from an increasing function to a decreasing function as x increases from left to right.
vertex = (5, 9 )
Since the function increases to the vertex then turns at the vertex and decreases.
It reaches a maximum value at the vertex of y = 9
