Answer:
11n
Step-by-step explanation:
7n+4n (factorize out n)
= n (7 + 4)
= n (11)
= 11n
The central angle COA = 2 * angle at the circumference
m < COA = 2 * 80 degrees
The answer is C. If you simplify the ratios in the table, they equal 3:5. You look at the examples, and divide both numbers in the ratios by this simplified porpotion. If the numbers are the smame as eachother after dividing, that is how you know your answer
F(n-1) = f(n) - 5, based off of the first one
