i think it would be your first choice
Answer:
20
Step-by-step explanation:

Answer:
A
Step-by-step explanation:
A secant is a line that goes through a circle at two points.
Answer:
see below and attached
Step-by-step explanation:
To solve a system of quadratic equations:
- Equal the equations then rearrange so that it is set to zero.
- Use the quadratic formula to solve.
I have done this (see attached workings) but cannot get any of the solutions you've provided. I have even graphed the two functions, and the points of intersection concur with my workings (see attached graph).