The answer is 5 because 10 divided by 2 is 5
        
             
        
        
        
14.4, 120% of 12 is 100+20, 12+2.4 is 14.4
        
             
        
        
        
Answer:
h = 6 cm
Step-by-step explanation:
Atriangle = b×h/2
18cm² = 6cm×h/2
36cm² = 6cm×h
h = 36cm²/6cm
h = 6 cm
 
        
                    
             
        
        
        
Answer:
15
Step-by-step explanation:
 
        
                    
             
        
        
        
The equation 0 = -2x2 5x - 3 was the quadratic formula that Zacharias used. However, he started substituting as:
Quadratic formula as x = ; substitution as x
The errors he made: he mistakenly used the negative (-) and postive (+)
      * -5 should have been 5
      * 52 should have been -52
      * both the numerator and the denominator  should have been -2 instead        of 2