Audrey Uses a Slingshot to Shoot a Marble from a Window

question 21

Multiple Choice

Audrey uses a slingshot to shoot a marble from a window. The height of the marble h(t) in feet at time t seconds is given by the function h(t) = -16t² - 54t + 306. How many seconds elapse before the marble hits the ground?

• A) 6 sec
• B) 5 sec
• C) 3 sec
• D) 4 sec

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