H=80 ft
Distance from horizon
=sqrt(h/0.57) miles
=sqrt(80/0.57) miles
=11.85 miles.
        
             
        
        
        
110 because avg speed is total distance over total time
        
             
        
        
        
Answer:
A. 1
Step-by-step explanation:
I see only one red function line in the graph. this line represents the simple function y = 1, for x in the interval [-2,1].
the domain of a function defines the possible values for x, and the range of a function defined the possible values for y.
this function has only one possible value for y : 1
so, only A applies. 
 
        
             
        
        
        
640 Diveded by 8 = 80 and 80 diveded by 6 = 13 R2
        
             
        
        
        
eight million four hundred nine thousand one hundred twenty