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Mathematics, 27.06.2019 03:40 zamudioj92p80d12

Apebble drops from a balcony that is 160 feet above the ground. the pebble lands on the top of a sign that is 16 feet high. the function y=160? 16t2 represents the height y (in feet) of the pebble t seconds after dropping from the balcony. how many seconds does the pebble drop before hitting the sign?

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