Answer:
6 and -8
Step-by-step explanation:
6*-8=-48
6+(-8)=-2
 
        
             
        
        
        
Answer: 36
Step-by-step explanation: when you solve the problem  2/3n-5=19 you get 36.
 
        
                    
             
        
        
        
Answer:
     x = ± √2 = ± 1.4142
Step-by-step explanation:
 
        
             
        
        
        
Answer:
k = 1
Step-by-step explanation:
English Translation 
Find k if the point P (-1, 2k + 1) belongs to the graph of the function f (x) = - 4x^2 + 7.
The function is given as
y = f(x) = -4x² + 7
and point (-1, 2k+1) lies on the graph. 
This point means that, at x = -1, y = 2k+1
y = -4x² + 7
Substituting the values in
2k + 1 = -4(-1)² + 7
2k + 1 = -4 + 7 = 3
2k = 3 - 1
2k = 2
k = 1
Hence, the point (-1, 2k+1) is (-1, 3)
To check,
y = -4x² + 7
3 = -4(-1)² + 7
3 = -4 + 7
3 = 3
So, this is truly correct.
Hope this Helps!!!
 
        
             
        
        
        
At this point, brian had lost 7 points.