true because if you add up 4 90°you get 360
 
        
                    
             
        
        
        
It is quadratic since a quadratic function is of the form :y=ax²+bx+c ,a,b,c are constants.
 
        
             
        
        
        
Answer:
Step-by-step explanation:
4*3^x+1=27+(3^2)^x
(3^2)^x=(3^x)^2
3^x=t
4t+1=27+t^2
t^2-4t+27-1=0
t^2-4t+26=0
delta=4^2-4*1*26=16-84=-68<0
the  equation has not real solutions
 
        
             
        
        
        
To the nearest hundredth the correct answer is 4.05, but you're basically right
        
             
        
        
        
Answer:
9-49
a=  2r+ 7
b= 2.5x + 16
c= 3r-2x-8.8
Step-by-step explanation: