Answer:
the answer is going to be
x>27
 
        
                    
             
        
        
        
You can take out an x
X(6x^2+5x-4)
Then factor it
X(3x+4)(2x-1)
        
             
        
        
        
The answer is A.) 21x/^3y
Here is proof
 
        
             
        
        
        
For the first part remember that an equilateral triangle is a triangle in which all three sides are equal & all three internal angles are each 60°. <span>So x-coordinate of R is in the middle of ST = (1/2)(2h-0) = h
And for the second </span><span> since this is an equilateral triangle the x coordinate of point R is equal to the coordinate of the midpoint of ST, which you figured out in the previous answer. Hope this works for you</span> 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
4(x+15)>_120
4x+60>_120
 -60. -60
4x>_60
— —
4 4
X>_12