Answer:
Its a i just took the test 
Step-by-step explanation:
 
        
             
        
        
        
Answer:

Step-by-step explanation:
Joint variation problem  solve using the equation y = kxz.
e ∝ fg
e=kfg
now substitute the values

The relationship will be:

 
        
                    
             
        
        
        
Step-by-step explanation:
 = x + x -2+ 1 -2x
=2x-3- 2x
=3 ans
hope it help you.
 
        
                    
             
        
        
        
The discriminant is b<span>²-4ac
We can rewrite x</span>² = 4 to x<span>² + 0x - 4 = 0
So a = 1, b = 0, c = -4
</span>Δ = 0 - 4 * 1 * -4
Δ = 16
The answer is B