Given the coordinates of the three vertices of a triangle ABC, 
the centroid coordinates are (x1+x2+x3)/3, (y1+y2+y3)/3
<span>so (-4+2+0)/3=-2/3, ]2+4+(-2)]/3=4/3
so the coordinates are (-2/3, 4/3)</span>
        
                    
             
        
        
        
Answer:
5/8
Step-by-step explanation:
1/4 (2/2)=2/8
3/8 (already simplified)
2/8+3/8=5/8
 
        
             
        
        
        
Answer:
8
Step-by-step explanation:
- An Equilateral Triangle (3 sides) has 3 Lines of Symmetry
 - A Regular Pentagon (5 sides) has 5 Lines of Symmetry
 - A Regular Hexagon (6 sides) has 6 Lines of Symmetry
 - A Regular Heptagon (7 sides) has 7 Lines of Symmetry
 - A Regular Octagon (8 sides) has 8 Lines of Symmetry
 
 
        
             
        
        
        
Answer:
n= 18 over 5
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
See explanation
Step-by-step explanation:
A. Gasoline fill-up fee = $4.50
Cost per hour = $40
Average cost = C
Number of hours the scootcar is rented = h
Cost per h hours = $40h
Total cost = $40h + $4.50
Hence,
C = 40h+4.5
B. To plot the graph of the function, find h- and C- intercepts.
When h = 0, then C = 4.5, and we have point (0,4.5)
When C = 0, then 0 = 40h + 4.5, h = -45/400 = -0.1125, and we have point (-0.1125,0)
Plot these two points and connect them with a straight line.
Graph is attached, but you should take only that part of the graph that corresponds to points with h > 0, because the number of hours cannot be negative