Answer:
You can use the midpoint formula.
Method:
MAB = (Ax+Bx)/2 ; (Ay+By)/2
Substitute in what you have:
(2;4) = (Ax+3)/2 ; (Ay+7)/2
Because we know the x coordinate of the midpoint, we can assume that:
2 = (Ax+3)/2
And now solve for Ax:
4 = Ax+3
Ax = 1
Because we know the y coordinate of the midpoint, we can assume that:
4 = (Ay+7)/2
And now solve for Ay:
8 = Ay+7
Ay = 1
Therefore A(1;1)
        
             
        
        
        
Answer:
Step-by-step explanation:
cos ( J ) =  =
 =  =
 =  
 
 
        
             
        
        
        
<span>All real numbers at least –6 and at most 3 is given by: 

</span>
 
        
        
        
Answer:
44
Step-by-step explanation:
look at the screenshot below, it should help
 
        
                    
             
        
        
        
Answer:
90°
Step-by-step explanation:
angle on a straight line=180 and half of 180=90°