Answer:
n = -11
Step-by-step explanation:
3n - 17 = -50
⇒ 3n = -33
⇒ n = -11
See attached picture for answer:
Answer:
78.5
Step-by-step explanation:
area of a circle is 
3.14(
)=78.5
Answer:
b and e
Step-by-step explanation:
Answer:
:)
Step-by-step explanation:
For simplicity I will substitue
for β.

In the first step I used the identity
And I factored out 
Then it's just simple algebra to cancel till the 3rd step where we used another identity derived from the Pythagorean Theorem.

That's it!