Derive the equation of the parabola with a focus at (–5, 5) and a directrix of y = -1.

Kristen is wrapping presents for the holidays. she has a box that measures 4 ft. x 2 ft. x 2 ft. how many square feet of wrapping paper does she need to cover the box without overlapping?

If a=0.333333 and b=0.55555, what is the value of a+b

Arock was dropped from the top of a building. the function that describes the height after it was dropped is f(x)=64-16x^2. what are the zeros of the function and what do they mean?