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2 September, 00:59

Some companies spend billions of dollars each year lobbying Congress to secure some desired action. For the years 1998-2012, the number of unique, registered lobbyists who have actively lobbied Congress can be approximated with the 4th - degree polynomial model

N (t) = - 0.35 t^4 + 6.1t^3 - 33 t^2 + 460t + 12278 0 ≤ t ≤ 15

where t represents the number of years since the beginning of the year 1998. Round your answers to the nearest lobbyist.

Required:

a. How many lobbyists were there during the 15-year deal?

b. If this trend continues, how many lobbyists can be expected from 2013 to 2016?

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Answers (1)
  1. 2 September, 03:32
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    a) 14,622 lobbyistsb) 13,498 lobbyists

    Step-by-step explanation:

    Given the number of unique, registered lobbyists who have actively lobbied Congress can be approximated with the 4th - degree polynomial model

    N (t) = - 0.35 t⁴ + 6.1t³ - 33 t² + 460t + 12278 0 ≤ t ≤ 15 where;

    t = number of years since the beginning of the year 1998

    a) To determine the number of lobbyists were there during the 15-year deal, we will have to substitute t = 15 into the modeled equation as shown;

    N (15) = - 0.35 (15) ⁴ + 6.1 (15) ³ - 33 (15) ² + 460 (15) + 12278

    N (15) = - 17,718.75+20,587.5-7,425+6,900+12278

    N (15) = 14,621.75

    This shows that there are about 14,622 lobbyists during the 15-year deal

    b) To determine the number of lobbyists that can be expected from 2013 to 2016 if the trend continue, we will substitute t = 3 into the modeled equation since there are 3 years between 2012 and 2016.

    N (3) = - 0.35 (3) ⁴ + 6.1 (3) ³ - 33 (3) ² + 460 (3) + 12278

    N (3) = - 28.35+164.7-297+1380+12279

    N (3) = 13498.35

    This means that if the trend continues, about 13,498 lobbyists will be expected from 2013 to 2016.
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