Answer:
Step-by-step explanation:
Use math-way go quick and easy answers without step by step explanations, and use math-soup-calculator for step by step explanation
 
        
                    
             
        
        
        
Answer: second option.
Step-by-step explanation:
 Given the transformation  →
→
  You must substitute the x-coordinate of the point A (which is  ) and the y-coordinate of the point A (which is
) and the y-coordinate of the point A (which is  ) into
) into  to find the x-coordinate and the y-coordinate of the image of the point A.
 to find the x-coordinate and the y-coordinate of the image of the point A.
 Therefore, you get that the image of A(2,-1) is the following:
  
 
 You can observe that this matches with the second option.
 
        
             
        
        
        
Answer:
13/18
Step-by-step explanation:
s t u p i d
 
        
             
        
        
        
Answer:
2000 meters
Step-by-step explanation:
When the motorboat is moving downstream, its speed relative to the ground is 18 km/h, so its speed relative to the raft is 15 km/h.
When the motorboat is moving upstream, its speed relative to the ground is 12 km/h, so its speed relative to the raft is again 15 km/h.
Converted to m/min, the relative speed is:
15 km/h × (1000 m/km) × (1 h / 60 min) = 250 m/min
It takes the motorboat 16 minutes to travel to the front of the raft and back.  Since the speed is the same in both directions, the motorboat takes 8 minutes to travel the length of the raft.
So the length of the raft is 250×8 = 2000 meters.
 
        
             
        
        
        
That's easy if there is 100 chairs there would be 10 rows with ten chairs in each row