Answer:
10.45?
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
0.15
Step-by-step explanation:
Fp: frequency that the pitcher will throw exactly 4 pitches to a batter=15
Fa: frequency that the pitcher will throw any pitches to a batter=15+20+40+15+10=100 
P=Fp/Fa=15/100=0.15
 
        
             
        
        
        
Area of a semicircle is 1/2* πr^2
Area of a square is s^2
Square’s area: 4mm^2
The radius is 3mm 
Plug into the equation 
1/2* π(3^2)
1/2* π(9)
We can use 3.14 as an estimate of pi 
1/2*28.26
14.13mm^2
Now just add them both 
Total area 18.13mm^2
        
             
        
        
        
Quotient is simply the result of dividing.