Modeling oil imports Crude oil and petroleum products are imported continuously by the United States.
The number of billions of barrels of oil and petroleum products imported per year for selected years from 2000 to 2010 are shown in the table.
(a) Find a cubic function P(t) that models the data, with t equal to the number of years past 2000.
(b) Evaluate 5∫10P(t) and tell what it represents.