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Concept explainers
Modeling DataThe amounts of the federal debt an (in trillions of dollars) of the United Stales from 2000 through 2011 are given below as ordered pairs of the form (n, an), where n represents the year, with n = 0 corresponding to 2000. (Source: U.S. Office of Management and Budget)
(0, 5.6), (1, 5.8), (2, 6.2), (3, 6.8), (4, 7.4), (5,7.9), (6, 8.5), (7, 9.0), (8, 10.0), (9, 11.9), (10, 13.5), (11, 14.8)
(a) Use the regression capabilities of a graphing utility to find a model of the form
an= bn2+ cn +d, n =0,1,. . ., 11
for the data. Use the graphing utility to plot the points and graph the model.
(b) Use the model to predict the amount of the federal debt in the year 2020.
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Chapter 9 Solutions
EBK CALCULUS: EARLY TRANSCENDENTAL FUNC
- i need help pleasearrow_forwardQuestion 4 Find an equation of (a) The plane through the point (2, 0, 1) and perpendicular to the line x = y=2t, z=3+4t. 3t, (b) The plane through the point (3, −2, 8) and parallel to the plane z = x+y. (c) The plane that contains the line x = parallel to the plane 5x + 2y + z = 1. 1+t, y2t, z = 43t and is (d) The plane that passes through the point (1,2,3) and contains the line x = 3t, y=1+t, and z = 2 – t. (e) The plane that contains the lines L₁ : x = 1 + t, y = 1 − t, z = = L2 x 2s, y = s, z = 2. 2t andarrow_forwardcan you explain why the correct answer is Aarrow_forward
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