Element of Circle
the central angle (α) = (the length of the arc x 360°)/2πr (r = radius)

convert to rad:

Answer:
a or c Im not sure
Step-by-step explanation:
I think b though
Answer:
y=1/4x+18.5
Step-by-step explanation:
Answer:

Step-by-step explanation:

Factor using Rational Root Theorem.
This means our possible roots are
positve or negative (1,2,3,6). If we try positve 1, it is indeed a root.
This means that

is a root.
We can divide the top equation by the root (x-1). Our new equation is

Now we can factor this completely

So this equation in factored form is

1. 4x754=5278
2. you could use exponets