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thankyouuuuu The height of a ball thrown vertically upward from a rooftop is modelled by h(t) = -5t2 + 20t + 50, where h(t) is

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The height of a ball thrown vertically upward from a rooftop is modelled by h(t) = -5t2 + 20t + 50, where h(t) is the ball's height above the ground in metres, at time t seconds after the throw. How high is the rooftop? Select one: a. 50 m O b. 70 m O c. 25 m O d. 30 m Clear my choice

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