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Mathematics 11 Online
OpenStudy (waheguru):

h=-9(t-3)^2+83

OpenStudy (waheguru):

This is representing the flight of a flare for how many seconds does the flare burn in air before it hits ground

OpenStudy (waheguru):

I got 6 seconds Am I right?

OpenStudy (mertsj):

|dw:1365985167915:dw|

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