128 ÷3=42.66
it doesn't say if they have to pay the money back but if they do it's 
128-35= 43
43÷3= 14.33
 
        
             
        
        
        
Question (1):The general formula of the quadratic equation is:
ax² + bx + c = 0
The given equation is:
5x² + 9x = 4
Rearrange the given equation to look the standard one:
5x² + 9x - 4 = 0
Now, compare the coefficients in the given equation with the standard one, you will find that:
a = 5, b = 9 and c = -4
Question (2):The given expression is:
 -5 + 2x²<span> = -6x 
</span>Rearrange this expression to be in standard form:
2x² + 6x - 5 = 0
This means that:
a = 2
b = 6
c = -5
The roots of the equation can be found using the formula in the attached image.
Substituting in this formula with the given a, b and c, we would find that the correct choice is third one (I have attached the correct choice)
Question (3):Quadratic formula (the one used in the previous question, also shown in attached images) is the best method to get the solution of any quadratic equation. This is because, putting the equation in standard form, we can simply get the values of a, b and c, substitute in the formula and get the precise solutions of the equation.
Hope this helps :)
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
You need to find the HCF of 36 and 90.
<u>Prime factors of each:</u>
<u>HCF includes all prime factors of both numbers:</u>
- HCF(36, 90) = 2*2*3*3*5 = 180
 
        
                    
             
        
        
        
50 percent because 10 cars would be 100 percent so 5 cars would be 50 percent you just have to find the half
        
             
        
        
        
Answer:
$100
Step-by-step explanation:
125 dollar bike will cost you 100 dollars if the sale for 20%.
125 x 0.20 = 25
25-125=100
Hope this helped!