Answer: Quadratic
Solution 
X=0
X=- 1/3
        
             
        
        
        
Well, we know perimeter is just adding all the lengths together.
And we already know 2 of the lengths, so we know the rest. 11 1/2 is the same as the opposite side, and 6 1/3 is the same as the opposite side.
So the sides are 6 1/3, 6 1/3, 11 1/2, 11 1/2. 
Add them up:
6 1/3 + 6 1/3 + 11 1/2 + 11 1/2.
Improper fractions:
19/3 + 19/3 + 23/2 + 23/2.
Common denominator, (6):
38/6 + 38/6 + 69/6 + 69/6 = 214/6.
Simplify:
214/6 =  35 2/3
 
        
             
        
        
        
Your answer would be: -3x2 + 3x - 6. 
I looked online to find this answer.  All credits to their owners.  Answer found on 
brainly.com/question/2825454.
This is not my answer.  I'm just here to help.  
 
        
        
        
Answer:
sorry i dont know :( 
Step-by-step explanation:
sorry :(
 
        
             
        
        
        
18% of 40 is 7.2
Change the percentage (18%) into a decimal by dividing it over 100:
18/100 = 0.18
Divide 7.2 by the decimal (0.18):
7.2 / 0.18 = 40