2 answers:
            
              
              
                
                
Answer:
3.714
Step-by-step explanation:
because you divide
 
                                
             
                    
              
              
                
                
Answer:
3.7 
Step-by-step explanation:
 
                                
             
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Right triangle 45 45 90
so b = 2√2
and 
a^2 = (2√2)^2 +  (2√2)^2
a^2 = 8 + 8 
a^2 = 16
a = 4
        
                    
             
        
        
        
C
B
your welcome i took test sorry if wrong
 
        
                    
             
        
        
        
Answer:
a) 5+(-1) 
b) 5-1
c) 4 is the value 
 
        
             
        
        
        
This isn't a question....
        
             
        
        
        
Answer:
Step-by-step explanation:
s(1-30/100)=420
s(100-30)/100=420
s(70/100)=420
s(7/10)=420
7s=4200
s=600