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NAEP Mathematics Grade 8

Category - Mathematics

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The formula d = 16 t2 gives the distance d, in feet, that an object has fallen t seconds after it is dropped from a bridge. A rock was dropped from the bridge and its fall to the water took 4 seconds. According to the formula, what is the distance from the bridge to the water?

16 feet
64 feet
128 feet
256 feet
4,096 feet

Explanation

Answer: D - 256 feet

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NAEP Mathematics Grade 8

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