If i'm not wrong its distributing property of addition. <span />
        
             
        
        
        
Answer:
-40
-6
51
Step-by-step explanation:
-33+-7 you are adding two negatives
9+(-15) you are adding a negative to a positive which gets you closer to zero
5-(-46) you are subtracting a negative which is adding 
 
        
             
        
        
        
Answer:

Or if you want with the value of h too. 

Step-by-step explanation:

Find the value of h and k by using the formula. 

From y = x²-2

Substitute these values in the formula. 

Therefore, h = 0.

Therefore, k = - 2.
From the vertex form, the vertex is at (h, k) = (0,-2). Substitute h = 0, a = 1 and k = -2 in the equation. 

These type of equation where b = 0 can also be both standard and vertex form. 
 
        
             
        
        
        
Of I don’t know sorry about that
        
             
        
        
        
Answer:
D. Equally likely outcomes
E. Relative frequency 
F. Cumulative frequency