Answer:
Step-by-step explanation:
the perimeter P=2(L+W)=54
P=2L+2W=54 OR L+W=27
we know that L=3W+3
P=3W+W=27-3
4W=24
W=6 CM
L=21CM
 
        
             
        
        
        

; where a = 1, b = -4 and c = -38
 
 
        
                    
             
        
        
        
Answer:
what is it?
Step-by-step explanation:
what's your question
 
        
                    
             
        
        
        
A. Linear y= -x - 1 would be the answer
        
             
        
        
        
Answer: f^{-1}(x) = 3-x/3
Step-by-step explanation: Let y = f(x) and rearrange making x the subject, that is...
1. y = - 3x + 3 ( add 3x to both sides )
2. 3x + y = 3 ( subtract y from both sides )
3. 3x = 3 - y ( divide both sides by 3 )
4. x = 3-y/3
Change x back into terms of y
f^{-1}(x) = 3-x/3