Answer:
3920
Step-by-step explanation:
(9+11)(14•14)
(20)(196)
20 x 196
3920
Answer: 
Step-by-step explanation:
In order to find the value of "x", it is important to remember that:

We can identify in the figure that:

Then:

Solving for AB:

Now, since there are 360° in a circle, we know that:

Then we can substitute
into
and solve for "x". This is:

Answer:
(-4,14)
(which you already choose)
Step-by-step explanation: