Answer:
isn't it 2x?
Step-by-step explanation:
 
        
             
        
        
        
Answer:
40 mph 
Step-by-step explanation:
20 miles in 1/2 hour
1/2 times 2 is 1, so 20 times two is 40 mph
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
Isn’t this mathematics not science 
 
        
             
        
        
        
Answer:
x=  −5±√−7  / −2 --> (No Real Solution)
Step-by-step explanation:
−x^2+5x−6−2=2−2
−x^2+5x−8=0
x=  −(5)±√(5)2−4(−1)(−8)  / 2(−1)
x=  −5±√−7  / −2