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A car starts moving at time t=0 and goes faster and faster. Its velocity is shown in the following table.

t (seconds)	0	3	6	9	12
Velocity (ft/sec)	0	8	27	43	74

A. Estimate how far the car traveled during the first 12 seconds using the left-hand sums with 4 subdivisions. Answer:

B. Now estimate how far the car traveled during the first 12 seconds using the right-hand sums with four subdivisions. Answer:

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