Answer:
<em>e. none of these</em>
Step-by-step explanation:
The correct answer is<em> e. none of these</em> because a negative discriminant means that there will be no solutions at all!
 
        
             
        
        
        
Given is the ones that say they are given on 2 3 4 & 5
        
             
        
        
        
Answer:
Commutative Property of Multiplication, I believe. Hope this helps!
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
The value of x if the equation is 
3x + 4y=65
   x = 49/3 or 16.3
&
3x - 4y=65
    x= 27
 
        
                    
             
        
        
        
Step-by-step explanation:
The number of people to paint the bridge is inversely proportional to the number of hours it takes.
(If there are more people, it will take less time etc.)
9 people can paint the bridge in 5 hours.
=> 2 people can paint the bridge in 5 * (9/2) = 22.5 hours.