The value of the bike after a year becomes only 80% of the value a year ago. In this given, the initial amount $500 should be multiplied by 80% 5 times. The answer would be $163.84. Thus, after 5 years the dirt bike would only be $163.84. 
        
                    
             
        
        
        
Answer:
0,-1
Step-by-step explanation:
bruh u know what a whole number is? also its less than not equal or less.
 
        
                    
             
        
        
        
Answer:
here this should help you understand.
Step-by-step explanation:
https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:quadratic-functions-equations/x2f8bb11595b61c86:completing-square-quadratics/v/completing-the-square-to-solve-quadratic-equations
 
        
             
        
        
        
Answer:
(a) Neither
(a) Perpemdicular
Step-by-step explanation:
Required
Determine the relationship between given lines
(a)

and

An equation written in form:  has the slope:
 has the slope:

So, in both equations:


For both lines to be parallel

This is false in this case, because:

For both lines to be perpendicular

This is false in this case, because:

(b)

and

Write equations in form:  
 


Divide by 5



Divide by 2

In both equations:


For both lines to be parallel

This is false in this case, because:

For both lines to be perpendicular

This is true in this case, because:

Cancel out 2 and 5

 
        
             
        
        
        
Okay so you know a straight line is equal to 180 degrees, so you set them up in an algebraic equation. (5x+2)+48=180 subtract 48 first to get 5x+2=132 Subtract the 2 this time to get 130. Now you end up with 5x=130. Here you divide 130 by 5 to get X=26. If you just need to find the degree of that angle tho you can stop after the first subtraction because the math tells you (5x+2)=132 degrees.