It belongs to  the set of real numbers
and as it can be written as a fraction then it is also a rational number.
        
                    
             
        
        
        
Answer:
Discriminant is 60
Step-by-step explanation:
 the discriminant of 
To find discriminant , first we write the equation in the form of 


Subtract 2 on both sides

a=3, b=6, c=-2
Formula for discriminant is 
Plug in the values

Discriminant is 60
 
        
             
        
        
        
Answer:
160in i believe 
Step-by-step explanation:
sorry im probably wrong lol 
 
        
             
        
        
        
He is, since each number is 4 more in value than the previous number
        
                    
             
        
        
        
N an acute angle is 90 degrees or less and 90 + 90 is 180 and an obtuse angle is always more than 90 and always less than 180