Let f(x) = 1/2x^2 + 5x + 8. Express f(x) in the form f(x) = 1/2(x-h)^2+k.
Express f(x) in the form f(x) = 1/2(x-r1)(x-r2).

How are sas and sss used to show that two triangles are congruent?

Two airplanes start at the same place and travel in opposite directions, one at 395 miles per hour and the other at 422 miles per hour. how many hours will it take for the planes to be 2451 miles apart?

The point of intersection of the diagonals of a rectangle is 4 cm further away from the smaller side then from the larger side of the rectangle. the perimeter of the rectangle is equal to 56 cm. find the lengths of the sides of the rectangle. 16 points answer quick