Use the trigonometric function.

Answer:
13
Step-by-step explanation:
It would be 13 because you would square the 5 and 12 to get 25 + 144 which equals 169. Then you would take the square root of 169 which is 13. Hope this helps! :)
It's between 11 and 12.
8 9 10 -11 12- 13 14 15
Answer:
<h3>B</h3>
Step-by-step explanation:
not sure if i am right but go off process of elimination
A is a not it to get slope you need to do Y=Mx+b because the slope should be 1.3 and if you get the deciml form of 3 over 9 it would be 0.75
and if you do same process on all of then you will see it is B
Answer:
a = =36
Step-by-step explanation:
a + 6 = -30
make a on its own
a = -30 - 6
a = =36