Answer:
Step-by-step explanation:
Answer
When you put this into your calculator, you get - 7.2111. The closest point to that is L. 
Answer: -7.2111 is closest to L
 
        
                    
             
        
        
        
Step-by-step explanation:
Did you mean:
= (a - b)(a + b) 
= a.a + b.a - b.a - b.b
= a² + ba - ba - b²
= a² - b²
 
        
             
        
        
        
Answer:
38.75
Step-by-step explanation:
perimeter = 2(15.6+3.8) =38.8
lower bound = the smallest value that would round up to the estimated value =38.75
 
        
             
        
        
        
4,8,11,7 are the coefficients in this expression