6:7
?:15
It's some crazy number I worked out but: 12.86 is the best thing I could get lol
Answer:
Step-by-step explanation: A= (Pi) x r^2
Answer: 
Step by step:
This is the simplest form of this radical.
Answer:
f(x)=1.5cos(16πx)+1.5
(Question on a Quiz was correct)