Answer:
3
Step-by-step explanation:
f(x) = 2x^2 + 1
f(-1) means that wherever you see an x on the right hand side, you substitute -1.
f(-1) = 2(-1)^2 + 1 = 2 + 1 = 3
 
        
                    
             
        
        
        
A true 
because 53•(41•11)=23,903 and (53•41)•11=23,903
Hope this helped
        
                    
             
        
        
        
The answer is 20 because you dive it
        
             
        
        
        
Answer:
 to the first one the answer is 0. To the number 2 the answer is 2
 
        
                    
             
        
        
        
Answer:
6.24
Step-by-step explanation:
A= 18.42g, B = 5.8g,C = 0.75g
Total = 18.42 + 5.8 + 0.75
 = 24.97g
Then divided into four equal parts
 = 24.97g/4
 = 6.2425g
 = 6.24g