Answer:
the answer is A
Step-by-step explanation:
 
        
             
        
        
        
Answer:

Step-by-step explanation:
The formula Length x Width = Area is the correct formula for the area of a rectangle. The same formula works for a square! 
 
        
                    
             
        
        
        
Answer:
i think it A
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
$1300
Step-by-step explanation:
The extruder yields a revenue of $200per hour 
Y denotes the number of breakdown per day. 
The daily revenue generated is given as 
R = 1600 - 50Y^2
We have an average of 2 breakdown per day
Lamda = 2
Represent lamda as β
E(Y) = β
E(Y(Y-1)) = β^2
E(Y^2) = E[Y(Y-1)] + E(Y)
 = β^2 + β
E(R) = E(1600 - 50Y^2)
 = 1600 - 50E(Y^2)
 = 1600 - 50(β^2 +β)
Recall that β = lamda = 2
 = 1600 - 50(2^2 + 2)
 = 1600 - 50(4+2)
 = 1600 - 50(6)
 = 1600 - 300
 = 1300
 $1300
The expected daily revenue of the extruder is $1300