45                                        90 
 /  \                                       /  \
5  9                                     45  2
   /  \                                   /  \
  3   3                                5   9 
 5x3x3                                   / \  
                                          3    3
                                        2x5x3x3
        
             
        
        
        
If they were 19& people at the pool what is the percentage 16.9
        
             
        
        
        
Answer:
The other factor is 
Step-by-step explanation:
we know that


In this problem we have

and
 -----> because is a factor
 -----> because is a factor
substitute and solve for b

so

Verify in the second equation
 ----->
 ----->  ----->
 ----->  --> is ok
--> is ok
The other factor is 
 
        
                    
             
        
        
        
We can solve by figuring the area of the rectangle then add it to the area of the semicircle.
Area of the rectangle: length · width = 6 · 10 = 60 ft²
Area of the semicircle: (πd²)/8 = (3.14 · 6²)/8 = (3.14 · 36)/8 = 14.13 ft²
Total area of the figure: 60 + 14.13 = 74.13 ft² ≈ 74 ft²