Answer:
48.01
Step-by-step explanation:
5(7)+4= 39
4(7)=28
39²+ 28²= 2305
√2305 = 48.01
  
        
             
        
        
        
Answer:
x=71
Step-by-step explanation:
38+x+x=180
x+x=142
2x=142
x=71
 
        
             
        
        
        
Answer:
x = 8
Step-by-step explanation:
0.4x - 1.2 = 0.15x + 0.8
0.4x - 1.2 + 1.2 = 0.4x
0.15x + 0.8 + 1.2 = 0.15x + 2 
0.4x = 0.15x + 2
0.4x - 0.15x = 0.25x
0.15x + 2 - 0.15x = 2 
0.25x = 2 
0.25x / 0.25 = x
2 / 0.25 = 8
x = 8
 
        
             
        
        
        
Answer:
the answer is:Your mom
Step-by-step explanation:
see wasn't that hard was it