The formula for arc length which is measured in units not degrees is 

, where 2 pi r is the circumference.  We were given the circumference as 12 pi, so we can fill in the rest of the formula and the find the length of the arc that is intercepted by that 330° angle.  

 gives us, after multiplying in the pi, an arc length of 34.56 units.
 
        
        
        
Answer:
 <em>0.2 √15</em> 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
y= 3 
Step-by-step explanation:
1. plug in 7 - 2y for X in 2x = y = 5   it would look like this  2(7-2y) = y= 5
2. distribute the 2 with what is in the parenthesis. remember PEMDAS!! it would be 14 - 4y + y = 5 
3. get the y alone. to do this subtract 14 from both sides. you will have 
-4y + y = -9 
4. combine the Y. you will get -3y = -9 (remember there is a 1 in front of alone variables that is how i got - 3)
5. divide to get the Y alone. that will be -9/-3 which is 3
your final answer: Y= 3
hope this helped :)
 
        
             
        
        
        
Answer:
all work is shown and pictured