is in quadrant I, so
.
is in quadrant II, so
.
Recall that for any angle
,

Then with the conditions determined above, we get

and

Now recall the compound angle formulas:




as well as the definition of tangent:

Then
1. 
2. 
3. 
4. 
5. 
6. 
7. A bit more work required here. Recall the half-angle identities:



Because
is in quadrant II, we know that
is in quadrant I. Specifically, we know
, so
. In this quadrant, we have
, so

8. 
I'm not sure about the answer, but this is how I would do it, since 15% and $150 are the same based on the question. do let me know if it's right! :)
What do you need help on? All I see is a y axis and x axis grid.
You meant pi, pi is a irrational number, but they use 3.14 for approximation, so that is your answer.
Hope this helped!
Nate
Answer:
512
Step-by-step explanation:
8 = 2^3
Therefore,
8^3
= (2^3)^3
= 2^(3*3)
= 2^9
= 512
Thus, 8^3 = 512
<h2>Please mark my answer as Brainliest!!!</h2>