The answer is A for this problem
        
             
        
        
        
Answer:
  4π cm
Step-by-step explanation:
The length of an arc of a circle with radius r and central angle θ is given by ...
   s = rθ
where θ is in radians.
Here, your arc measures 60° = π/3 radians, so the arc length is ...
   s = (12 cm)(π/3) = 4π cm
 
        
             
        
        
        
Answer:
-2 Celsius >-5 Celsius is the answer.
 
        
                    
             
        
        
        
Answer:
the desired equation is y = (-1/3)x + 6
Step-by-step explanation:
Let the given line be A:  y=3x+2
The slope of line A is m = 3.
The slope of any line B which is perpendicular to line A is the negative reciprocal of the slope of A:  m = -(1/3).
The particular perpendicular line that passes through (3, 5) is then
5 = (-1/3)(3) + b, which simplifies to 5 = -1 + b, or b = 6.
Thus, the desired equation is y = (-1/3)x + 6
 
        
             
        
        
        
To multiply fraction do top x top and bottom x bottom 
so convert 

 into 

then do 
