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

this is a very good question

step-by-step explanation:

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answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,

the answer is d

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