I do not know bro. Have you tried
Answer:
C
Step-by-step explanation:
12 + 3x
12 + 3(20)
12 + 60
72
The axis of symmetry would be -3 because it is always the (x) of the vertex
Answer:
8√13 units
Step-by-step explanation:
We use the distance formula.
The distance formula states that the distance between two points (x, y) and (a, b) is equal to:
d = 
Here, x = 6, y = -1, a = -18, and b = 15. Plug these in:
d = 
d =
= 8√13
The answer is thus 8√13 units.
<em>~ an aesthetics lover</em>
Just remove the parenthesis since you are adding them and combine like terms
x+5+2x+3
3x+8