So discriminant gives us 3 possibilites connected with result of the equation b^2-4ac. If it is bigger than zero, there are 2 solutions, if answer is exactly 0, then there is one answer and if the number is lower than 0, there are no solutions.
Discriminant of your quadratic equation is (-4)^2-4*1*5=16-20=-4, so there are no solutions.
        
                    
             
        
        
        
Answer:
in the survey, 16 out of 80 students who where asked favored chicken nuggets. 
so we need to calculate like this:
530 * 16/80
=530 * 1/5
=530/5
=106
hope this helps your understanding, wish you good grades
 
        
             
        
        
        
Answer:
-156?
Step-by-step explanation:
 
        
             
        
        
        
Answer:
option B ................
is the correct answer
 
        
                    
             
        
        
        
Answer:
0.77777777777777777777777
Step-by-step explanation: