Define the radius in terms of arc length, s, and the central angle, Θ.
A) r = Θs

B) r = s + Θ

C) r = Θ - s

D) r = s/Θ

What are the solutions of the system? y = x^2 + 2x +3y = 4x - 2a. (-1, -6) and (-3, -14)b. (-1, 10) and (3, -6)c. no solutiond. (-1, -6) and (3, 10)