Answer:
3*4=12
12-2=10
10*2=20
20+15=35
35*2=70
Step-by-step explanation:
 
        
             
        
        
        
The Bigger weight minus the lower weight
        
             
        
        
        
The midpoint of (x1,y1) and (x2,y2) is 

just average them
(4,1) and (-2,4)
the midpoint is  

(1,-1.5)
 
        
        
        
Answer:
To solve for speed or rate use the formula for speed, s = d/t which means speed equals distance divided by time. To solve for time use the formula for time, t = d/s which means time equals distance divided by speed.
Step-by-step explanation:
 
        
             
        
        
        
Answer:
x = ±2sqrt(15)
Step-by-step explanation:
x^2 = 60
Take the square root of each side
sqrt(x^2) = ±sqrt(60)
x = ±sqrt(60)
x = ±sqrt(4 *15)
x = ±2sqrt(15)