49=-7k is equivalent to D because when you simplify both of them, you get -7=k
Answer:
1/2
Step-by-step explanation:
Answer:
By power of a point, AC⋅CB=DC⋅CE. That is, 12⋅12=6⋅(2R–6).
Then, R=15.
I only could find part of the triangle sorry, but u1 is 2 radical 2
