SOLUTION: Benjamin threw a rock straight up from a cliff that was 140 ft above the water. If the height of the rock h, in feet, after t seconds is given by the equation h=-16t^2+92t+140, ho
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-> SOLUTION: Benjamin threw a rock straight up from a cliff that was 140 ft above the water. If the height of the rock h, in feet, after t seconds is given by the equation h=-16t^2+92t+140, ho
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Question 1035296: Benjamin threw a rock straight up from a cliff that was 140 ft above the water. If the height of the rock h, in feet, after t seconds is given by the equation h=-16t^2+92t+140, how long will it take for the rock to hit the water?
You can put this solution on YOUR website! h=-16t^2+92t+140, how long will it take for the rock to hit the water?
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Until h = 0
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h=-16t^2+92t+140 = 0
Solve for t.
