The missing angle would be 35 degrees. The straight line adds up to 180 and the right angle would be 90 degrees. 180-90-55 would be 35.
        
             
        
        
        
Answer:
Your answer would be D
Step-by-step explanation:
 
        
                    
             
        
        
        
I believe the answer is 311.157055138. That is if i did my math correctly. I hope this helps. Good luck!
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
The rate of change is a measure of the slope
Calculate the slope m using the slope formula
m = 
with (x₁, y₁ ) = (29, 9) and (x₂, y₂ ) = (33, 10)
m =  =
 =  ← rate of change
 ← rate of change
 
        
             
        
        
        
The cheetah runs 2 meters/sec faster than the gazelle.  Eventually the cheetah will overcome the gazelle.  Since distance = rate times time, time = distance/rate.
Thus, 
300 meters / (2 meters/sec) = 150 sec = 2 min 30 sec