Mathematics, 28.11.2020 19:30 vanessagallion

The total public debt D (in trillions of dollars) in the United States at the beginning of each year from 2000 through 2008 can be approximated by the model D = 0.032t2 + 0.21t + 5.6, 0 ≤ t ≤ 8
where t represents the year, with t = 0 corresponding to 2000.†

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The total public debt D (in trillions of dollars) in the United States at the beginning of each year...