Answer:

Step-by-step explanation:
Given



Required
Find x
If  i.e. If AB is parallel to CD, then
 i.e. If AB is parallel to CD, then

Substitute values for ABC and BCD

Collect Like Terms


Multiply through by 





 
        
             
        
        
        
(0,-3) (1, -1) (2, 1) ....
        
             
        
        
        
Answer:1251231
Step-by-step explanation:
 
        
             
        
        
        
Answer:
60 miles
Step-by-step explanation:
In 1 week Zach will run 
6* 5 = 30 miles
Multiply this by 2 for 2 weeks
30*2 = 60 miles