<span>Are the lines in the diagram perpendicular, parallel, skew, or none of these?
l and m: neither
l and m intersect, but are not perpendicular. 
l and n: skew
l and n are not parallel, but they do not intersect because they are not on the same plane. 
m and n: perpendicular. 
m and n intersect at a right angle</span>
        
                    
             
        
        
        
Y’’(x)= 6x + 1
y’(x)= 3x^2 + x + 2
y(x)= x^3 + 1/2x^2 + 2x + 5
        
             
        
        
        
There Are Multiple Answers.... Here are 5 possible answers 
•616,825
•618,471
•617,071
•619,664
•615,672
        
             
        
        
        
Place values:
As each is in a different place value, when we add them neither will affect the other, meaning:

Answer: B 4.39