Answer:
Step-by-step explanation:
If this was an entire circle, the area could be found by using
Area = pi * r^2 where r = 9
To take the central angle into account, use this formula
Area = 120/360  * pi * r^2
Area = 1/3 * pi * 9^2
Area = 27 pi
area  = 84.78 cm^2  which isn't there. 
 
        
             
        
        
        
113.04 about-ish I used 3.14 for pi
        
             
        
        
        
Answer:
C
Step-by-step explanation:
3/5 + 1/4 = 0.85 
0.85 as a fraction is 17/20
So the answer is C
 
        
             
        
        
        
A suitable probability calculator will tell you that probabilty is about 25.9%.
_____
The normalcdf function on this calculator gives an area between a lower and upper limit. If the upper limit is more than about 8 standard deviations above the mean, the 10th decimal place is unaffected. Since the standard deviation here is about 5, we need to have an upper limit that is about 40 above the mean of about 30. We have chosen 80 as a nice round number and to give a little more margin.
 
        
             
        
        
        
Answer:
75%
Step-by-step explanation:
For this case, the first thing we will do is name variables:
 a: percentage from ticket sales
 b: ticket sales
 We have then:
 a = 75%
 b = (0.75) * (3200) = $ 2400
 Answer:
 a = 75%
 b = (0.75) * (3200) = $ 2400
 The amount of ticket sales is $ 2400.