Answer:
Step-by-step explanation:
oknjbgfkdfrgn jnfbfl
 
        
             
        
        
        
Answer:
x ≥ -7
Step-by-step explanation:
Divide both sides by 6
Then to graph it, you can make a number line
 
        
                    
             
        
        
        
Answer:
46
Step-by-step explanation:
With those problems if you are not given a picture is good we draw one. 
Because an angle bisector forms 2 congruent angles and because is given that  < XVY ≅ < YVW  then 
m < XVY = m < YVW 
       2x+7 = x+15 , subtract x and 7 from both sides to isolate the like terms
       2x-x = 15-7, combine like terms
            x = 8
From the picture and the given we see that 
m < XVW = m < XVY + m < YVW 
 m < XVW = 2x+7 + x+15 , combine like terms
 m < XVW = 3x + 22, substitute x for 8
 m < XVW = 3*8 + 22
 m < XVW = 46
Check our work:
m < XVY =  2x+7  = 2*8 +7 = 16 +7 = 23
m < YVW =  x+15 = 8 +15 = 23
m < XVW = m < XVY + m < YVW = 23+23 =46 
 
        
             
        
        
        
Answer:
Step-by-step explanation:
If you're looking for what the half angle of the tangent of theta is, I'm a bit confused as to why you think the angle in the 4th quadrant, x, is relevant.  But maybe you don't know it isn't and it's a "trick" to throw you off.  Hmm... 
Anyways, the half angle identity for tangent is

There are actually 3 identities for the tangent of a half angle, but this one works just as well as either of the others do, so I'm going with this one.  
If theta is in QIII, the value of -4 goes along the x axis and the hypotenuse is 5.  That makes the missing side, by Pythagorean's Theorem, -3.  Filling in our formula:
 which simplifies a bit to
 which simplifies a bit to
 and a bit more to
  and a bit more to

Bring up the lower fraction and flip it to divide to get
 which of course simplifies to
 which of course simplifies to 
-3.  Choice A.
 
        
             
        
        
        
P is being divided with r