An acom fails from the branch of a tree to the ground 64 feet below. The distance, S, in feet, the corn is from the ground as it falls is represented by the function S(t) + -16t(squared) + 64 where
represents the number of seconds since the acorn began falling. How long does it take for the
acorn to reach the ground? 2 4 8 16

Titus works at a hotel. part of his job is to keep the complimentary pitcher of water at least half full and always with ice. when he starts his shift, the water level shows 4 gallons, or 128 cups of water. as the shift progresses, he records the level of the water every 10 minutes. after 2 hours, he uses a regression calculator to compute an equation for the decrease in water. his equation is w –0.414t + 129.549, where t is the number of minutes and w is the level of water. according to the equation, after about how many minutes would the water level be less than or equal to 64 cups?