I believe 7 feet would be the height of the sail.
Basic cubic graph is y = x^3
1. Angle addition postulate (this could be wrong)
2. Definition of bisect
3. Definition and postulate
4. Screenshot at the bottom
Last one I can't help, my bad.
Answer: x= 225 over 16
Step-by-step explanation:
I believe it is the 9, with absolute values the number will always be positive so the absolute value of -9 is 9, which is the greatest out of all the options