Answer:
given us, 
n=4
here
3^-n+1-3^-n+2
3^-4+1-3^-4+2
-4+1-4+2
-5
Step-by-step explanation:
we can put value in n .we can power add and subtract then we can cut 3 then power we can add or subtract 
 
        
             
        
        
        
I need to see the graph please
        
             
        
        
        
Answer:
CD= 15.03
Step-by-step explanation:
x1=7, x2= -8
y1=-4, y2=-5
 
 distance CD= √(x2- x1) 2+ (y2-y1)2
 = √( -8-7)2 + [-5-(-4)]2
 = √(15)2+ (-5+4)2
 = √225+ (1)2
 = √225+1
 = √226 
 = 15.03
 
        
             
        
        
        
This is a guess but 5/10 idk rlly know but sorry if I’m wrong
        
             
        
        
        
The answer is 1 no solution