Answer:(0, -10)
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
x1= -7 , x2 = 7
Step-by-step explanation:
x^2 = 37 +12 
x^2 = 49
x = -7 or 7
 
        
                    
             
        
        
        
Answer:
By the Pythagoras theorem, the hypotenuse (c), is equivalent to: 
a^2+ b^2= c^2 where a and b are the other two sides of the right angled triangle, hence c= square root (15^2+ 20^2)= 25
 
        
             
        
        
        
Answer:
The answer is 54 cubes.
Step-by-step explanation:
 
        
             
        
        
        
The answer is between B and C but... I'm kinda leaning more towards B but, you choose which one you think is right.
Hope I helped you. :)