Answer:
6 hours
Step-by-step explanation:
8 × 3/4 hours
= (8 x 3) / 4
= 24/4
= 6 hours
The element on the position (1,1) in the product matrix FC is a scalar product of the first row in F and the first column in C.
Therefore the element in the position (1,1) in FC will be a scalar product of (-2,0) and (12,1):

The only matrix that has a value of -24 in the position (1,1) is matrix B.
Therefore, the answer is matrix B.
F(g(x)) = f(x-4) = (x-4)
g(f(x)) = g(x) = x-4
Answer:
What? I'm in middle school ;-;
Step-by-step explanation: