Mathematics, 25.06.2019 21:10 samueldfhung

Asmall rock falling from the top of a 124-ft-tall building with an initial downward velocity of –30 ft/sec is modeled by the equation h(t) = –16t2 – 30t + 124, where t is the time in seconds. for which interval of time does the rock remain in the air?

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Asmall rock falling from the top of a 124-ft-tall building with an initial downward velocity of –30...