To find the midpoint of a line use the midpoint formula which is M = (x1+x2/2 , y1 +y2/2) After plugging in the coordinates for your variables you should get (-1+5/2, -1+2/2) This simplifies to (2, 1/2) which is the coordinates for the middle point of the base XY.
 
        
             
        
        
        
Answer: 18
Step-by-step explanation:
See the photo for work shown
 
        
                    
             
        
        
        
Answer:
The dilation is an enlargement by 3
Step-by-step explanation:
I took geometry lasy yr
 
        
                    
             
        
        
        
It could be many things like 30 + 4 = 34
        
                    
             
        
        
        
30 girls and 42 boys so idk this makes no sense and I'm older than you