Question
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A falling object travels a distance given by the formula d=3t+5t2, where d is measured in feet and t is measured in seconds. How many seconds will it take for the object to travel 84 feet?
A falling object travels a distance given by the formula d=3t+5t2, where d is measured in feet and t is measured in seconds. How many seconds will it take for the object to travel 84 feet?
Answers
oobleck
3t+5t^2 = 84
5t^2 + 3t - 84 = 0
solve as usual.
5t^2 + 3t - 84 = 0
solve as usual.