Answer:
Vertex is (-4, -18)
Step-by-step explanation:
f(x) = 
Let (h, k) be the vertex
An easy way to find h is to use the formula h = -b/2a
In your case where f(x) =  a = 2 and b = 8
   a = 2 and b = 8
So, h =  -8/2(1) = -8/2 = -4
Substitue -4 in for x to find k
k = ( ) + 8(-4) - 2
) + 8(-4) - 2
   = (16) - 32 - 2
   = 16 - 32 - 2
   = -18
Vertex is (-4, -18)
Note:  Another way to find the vertex is to complete the square, but this can really be difficult in some cases
 
        
             
        
        
        
The answer is $120, because you do;
0.40x = 48
YOU DIVIDE 48 ÷ 0.40 = 120
YOU'RE WELCOME ;)
        
             
        
        
        
Answer: B) 6462.32
Step-by-step explanation:
Compound interest can be calculated via the attachment.
Hope it helps <3
 
        
                    
             
        
        
        
Step-by-step explanation:
please check and rewrite ur question
 
        
                    
             
        
        
        
U minus them?or plus them?