Determining a Quadratic Function with a
Which function has a vertex at (2, -9)?
f(x) = -(x-3)2
f(-x) = (x + 8)2
f(x) = (x - 5)(x + 1)
f(x) = -(x - 1)(x - 5)

Name the quadrilaterals that have four equal sides.

Igor stravinsky tires sells approximately 3,760,000 car tires and 1,200,000 truck tires each year. about 47,000,000 care tires and 26,000,00 truck tires are sold each year in the united states. what is stravinsky's market share in each of these two markets (cars and trucks)?

Find the measure of the interior angles of the following regular polygons: a triangle, a quadrilateral, a pentagon, an octagon, a decagon, a 30-gon, a 50-gon, and a 100-gon.