I would say that the answer is probably 40
        
             
        
        
        
Answer:
(-5, -8)
Step-by-step explanation:
Parabolas always have a lowest point (or a highest point, if the parabola is upside-down). This point, where the parabola changes direction, is called the "vertex". If the quadratic is written in the form y = a(x – h)2 + k, then the vertex is the point (h, k).
x^2 + 10x = - 17
x^2+10x+17=0
x^2+2*5x+25 - 8=0
(x+5)^2-8=0
h=-5, k= -8
vertex is (-5, -8)
 
        
             
        
        
        
It mean that everything is goin down and that there isnt anything interfering with it 
        
             
        
        
        
Answer:
Step-by-step explanation:
root 9 looks like

maybe you can solve it now?
3*3 = 9
so root 9 = 3
mark 3 on the number line
 
        
             
        
        
        
Answer:
D
Step-by-step explanation:
17 does not equal -10 therefore it is no solution