Cynthia throws a rock that she found on the beach into the water. The rock follows a parabolic arc that can be modelled by the equation h= -2t2+15t+8 , where h is height above the water and t is time ( in seconds). Can you determine how many seconds does it take for the rock to hit the water? Explain how you get your answer

given that when Cynthia throws a rock into water , the path of the rock can be modelled by the…

Answered: Cynthia throws a rock that she found on…

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter2: Functions And Graphs

Section2.5: Graphs Of Equations And Circles

Problem 119E

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Cynthia throws a rock that she found on the beach into the water. The rock follows a parabolic arc that can be modelled by the equation h= -2t²+15t+8 , where h is height above the water and t is time ( in seconds). Can you determine how many seconds does it take for the rock to hit the water? Explain how you get your answer

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