What is the equation of the parabola that opens right, has the vertex at the origin, focus is ( 2,0 ) and directrix at x = − 2 ? A. x = − 1 8 y 2 B. y = 1 8 x 2 C. x = 1 8 y 2 D. y = − 1 8 x 2

Mr switzer needs to buy new 1-foot tiles to cover his bathroom floor. the floor is 12 feet long and 8 feet wide. each square foot of tile will cost $1.79. in dollars what will be the total cost of the tiles he needs to buy.

50 points~ ! i have to turn this in tomarrow

Suppose the equation ||x-a|-b|=2008 has 3 distinct real roots and a not =0. find the value of b.