Answer:
The constant of variation in a direct variation is the constant (unchanged) ratio of two variable quantities. The formula for direct variation is. y=kx (or y=kx )
 
        
                    
             
        
        
        
Answer:
Perpendicular lines are lines that intersect at right angles. If you multiply the slopes of two perpendicular lines in the plane, you get −1 . That is, the slopes of perpendicular lines are opposite reciprocals .
Hope this help:)
 
        
             
        
        
        
Answer:
6
 
(4×n²) + (4×n¹) + (5×n^0) = 173
 4n² + 4n + 5 = 173
 4n² + 4n = 168
 divide through by 4
 n² + n - 42 = 0
 n² + 7n - 6n - 42= 0
 (n + 7)(n - 6) = 0
 n = -7 or 6
 but the solution is 6 since base is not negative.
 
        
             
        
        
        
Answer:
The number is 8
Step-by-step explanation: