The height of a model rocket is given (in centimeters) by the formula h=-490t^2h=−490t 2 , where t is measured in seconds and h = 0 refers to its original height at the top of a mountain. It begins to fly at time, t = 0. When has the rocket descended 490 centimeters? Write the equation of the rocket in standard form. = 0 Write the equation in factored form. = 0 Solutions to the equation t = or The rocket will descend 490 centimeters at