Answer:
Step-by-step explanation:
discriminant=5²-4×1×7=25-28=-3<0
no real number solution.
 
        
                    
             
        
        
        
Answer:
D. No, because group A is already the control group.
 
        
             
        
        
        
Answer:
b) 1.383
d) 2733
f) 41.429
h) 6317
j) 87.889
Step-by-step explanation:
 
        
             
        
        
        
It's one solution.
no matter how you solve it, it will equal j = 1.
        
             
        
        
        
Twenty-Six Million, One Hundred Forty-Three Thousand, Sixty-Two