Answer:
its 9 but i could be wrong
Answer:

Step-by-step explanation:

We can try to simplify first.

Now we can combine the like terms:

hope this helped! :)
Answer:
?
Step-by-step explanation:
We can't see minor arc xz, you need a picture
The answer is 23 because I know this answer.
Answer:
tan(9pi/12) = 0.041146549
Step-by-step explanation: