The data from the U. S. Census Bureau for 1982-2003 shows that the surface area of the United States that is covered by rural land can be modeled by the function R (x) = 0.003x3 - 0.086x2 - 1.2x + 1,417.4 where x is the number of years after 1982 and R (x) is the surface area in millions of acres. The total surface area of the United States can be modeled by the function T (x) = 0.0023x3 + 0.034x2 - 5.9x + 1,839.4 where x is the number of years after 1982 and T (x) is the surface area in millions of acres.
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Home » Mathematics » The data from the U. S. Census Bureau for 1982-2003 shows that the surface area of the United States that is covered by rural land can be modeled by the function R (x) = 0.003x3 - 0.086x2 - 1.2x + 1,417.