Answer:
19683
Step-by-step explanation:
As the formula of the geometric sequence:

In the sequence of 1, 3, 9..., you have a1 = 1 and r = 3. Therefore:

Hope this helps!
Move all terms to the left side and set equal to zero. Then set each factor equal to zero.
x=10,−1
Answer:
-7 degrees
Step-by-step explanation:
Make sure to double check, but I think this is the answer.