Answer:
df=eg is  Segment Congruence Postulate
de+ef=ef+fg is  Definition of midpoint
de+fg is given
 
        
             
        
        
        
Use slip and slide method
x^2+13x-30
(x+15)(x-2)
(x+15/6)(x-2/6)
(x+5/2)(x-1/3)
(2x+5)(3x-1)
Final answer: (3x-1)
        
             
        
        
        
Answer: C. Engine life decreases steady with time.
Step-by-step explanation:
 
        
             
        
        
        
Answer:
GK=JK 
Step-by-step explanation:
SSS congruency  is side-side-side congruency. We are given that GH=JH and KH=KH, which are both sides. 
For SSS, we need 3 pairs of congruent sides. We already have 2 pairs. 
The options are: 
<G=<J
<H=<H
GK=JK 
the first two options, <G=<J and <H=<H are talking about congruent angles. We don't need to know about congruent angles for SSS
GK=JK is talking about a pair of congurent sides. Then, we would have 3 pairs of congruent sides, satisfying the criteria needed for SSS. Therefore, we must know that GK=JK. 
Hope this helps! 
 
        
             
        
        
        
-2x^3-x^2-6x-7
I don't really know what else