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22-05-2017
Mathematics

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h (t) = –16t 2 + 128t. What is the height of the javelin after 5 seconds?

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22-05-2017

h(t) = -16t^2 + 128t
h(5) = -16(5)^2 + 128(5)
h(5)= -16(25) + 640
h(5) = - 400 + 640
h (5) = 240

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