Examine the function cos(x) on what interval is the derivative positive?

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expression 4s+9s represents the total number of items that will be displayed on s shelves. simplify the expression

Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]