Which expression is the best estimate of 1 1/4 • 3 2/3 ? A) 2 •4 B) 1 •4 C)2•3 D) 1•3
       
      
                
     
    
    
    
    
    2 answers:
            
              
              
                
                
Answer:B
Step-by-step explanation:
Estimate it
 
                                
             
                    
              
              
                
                
Answer:
B) 1·4  
Step-by-step explanation:
When you are estimating with mixed numbers, you should round them off to the closest integers that you can work with in your head.
1¼ is close to 1
3⅔ is close to 4
1¼ × 3⅔ is close to 1 × 4  
 
                                
             
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Answer:
26.
Step-by-step explanation:

 
        
             
        
        
        
If f(x)=1/9x-2
then f^-1(x) will be
lets assume f(x)=y
y=1/9x-2
y+2=1/9x
9(y+2)=x
f^-1(x)=9(y+2)
rest u can do with the same method
        
                    
             
        
        
        
Answer:
Solution given:
<ABC and <QRS are supplementary angles.
 <ABC = 91°
we have
<ABC +<QRS=180°[supplementary]
<QRS=180°-91°=89°
m<QRS=89°
 
        
                    
             
        
        
        
Simple 
scientific notation
8.009 × 10-3
        
             
        
        
        
Answer:
It helps in common sense
Step-by-step explanation: