153.86 because A= p * r^2
Hope This Helps.
        
             
        
        
        
Answer:b 1/2
Step-by-step explanation:
 
        
             
        
        
        
Answer:
C) y-5x=2
Step-by-step explanation:
y-5x=2
y=5x+2 parrallel to y=5x-5
Can I get brainliest!
 
        
             
        
        
        
Answer:
The answer is 75 tests for 150 people.
Step-by-step explanation:
Firstly, with 150 people, we can divide into 15 groups; and the probability of disease is 0.04, there are 6 persons who possibly get disease. 
Therefor, the maximum number of groups with an individual getting disease is 6. Then, 6 * 11 tests = 66 tests required. 
15 groups - 6 groups with disease = 9 groups of negative with 9 tests.
In conclusion, there are 75 tests required.