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The speed of a runner increased steadily during the first three seconds of a race. Her...

The speed of a runner increased steadily during the first three seconds of a race. Her speed at half-second intervals is given in the table. Find lower and upper estimates for the distance that she traveled during these three seconds.

ft (smaller value)
ft (larger value)
t (s) 0 0.5 1.0 1.5 2.0 2.5 3.0
v (ft/s) 0 6.7 11.2 14.1 17.5 19.8 20

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