Answer:

Step-by-step explanation:
cos O = adjacent / hypotenuse
cos O = 12/13
I hope I helped you^_^
I'm not 100% sure what you want me to do with this but i hope this helps:
x < -3
or if you want me to flip the sign then the solution becomes
x > -3
The answer would be -6x +s -14
Answer:
It is the second choice.
Step-by-step explanation:
Divide both side by pi r squared. Boom.
The nth term is given by 2ⁿ-1.
The series looks like, 1, 3, 7, 15, 31, 63, 127, ...