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Mathematics, 06.06.2020 02:03 jhenifelix

A pebble drops from a balcony that is 80 feet above the ground. The pebble lands on the top of a sign that is 16 feet high. The function y=80βˆ’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? The pebble hits the sign after seconds.

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A pebble drops from a balcony that is 80 feet above the ground. The pebble lands on the top of a sig...
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