violetmanatee317

The ratio

is a constant number.

Its value is 

Given f(x)=  f'(x)= f"(x)=  

The graph concaves up for ____________________________and concaves down for
____________________________. 

Can someone help me with the blanks? Thanks

An automobile factory wants to produce a total of 210 cars during three shifts. If the first shift produces two-fifths of the cars and the second shift produce one-third of the cars, what fraction of the total cars does the third shift need to produce?