Answer:
easy
Step-by-step explanation:
just mutiply both numbers of the the side by themselves or square them, then add them together and find the square root. sorry that i can't do them individual but this is a simple explaination
I think you have to do 12 + 12 + 12 to get your answer.
dy/dx = 2ax + b
d²y/dx² = 2a
2a < 0
When a < 0
(So concave)
2a > 0
When a > 0
(So convex)
A and C
3x1/12= 3/12
3x1/2= 3/12
0.00675