Answer:
Er... um... huh?
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
1 and - 1
Step-by-step explanation:
The equation of a line passing through the origin is
y = mx ( m is the slope ( gradient ) )
y = x ← is in this form
with gradient m = 1
Parallel lines have equal gradients
Then the gradients of lines parallel to the given line is 1
Given a line with gradient m then the gradient of a line perpendicular to it is
 = -
 = -  = -
 = -  = - 1
 = - 1
Then the gradients of lines perpendicular to this line is - 1
 
        
             
        
        
        
Answer:
Los números enteros son los naturales, sus opuestos (negativos) y el cero. El conjunto de los números enteros se representa mediante una Z, Z= {0,1,-1,2,-2,3,-3,4,-4...}. Se cumple entonces que todo número natural es entero.
 
        
             
        
        
        
Answer:
Equation 
28  =  X - 12
Solve for X
Isolate the X
28+12 = X
40 = X
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
1 battery cost .49875 cents, but .50 rounded
Step-by-step explanation:
Divide 3.99 by 8 and you will get .49875