Answer:
The last option
V = (-1.5,3)
other options dont lie where V is exact 
V is only Exact at (-1.5,3)
 
        
             
        
        
        
Answer: b = 8
Step-by-step explanation:
Use the Pythagorean theorem
A square + B square = C square
C square - A square = B square
C square - B square = A square
10 - 6 = b --Square it
100 - 36 = 64 (square root)
64 = 8
b = 8 miles
 
        
             
        
        
        
Answer:
21,678 rounded to the nearest ten is 21,680
 
        
             
        
        
        
Positive I think that would be it