Answer:
Your answer is C.) x2(x – 2) cubic units 
On EDG
Step-by-step explanation:
Just took the test
 
        
                    
             
        
        
        
Answer:
-2/5
2
Step-by-step explanation:
Slope is rise over run according to my former algebra teacher, but I learned it differently (still correct tho).
The first moves 2 units down so negative 2, and moves 5 units right, so -2/5 since the rise is -2, and run is 5.
The second one moves 2 x-units for every 1 y-unit, so the slope is 2,
 
        
             
        
        
        
Https://youtu.be/Qo1_xkv2w_M
        
                    
             
        
        
        
Cosine is 

 which applies to a right triangle. I hope that helps you.