The number of research articles in a prominent journal written by researchers during 1983-2003 can be approximated by 4.4e0.6t thousand articles per year (0 st≤ 20), 0.2 + 0.6t U(t) = where t is time in years (t = 0 represents 1983). (a) Find an (approximate) expression for the total number of articles (in thousands) written since 1983 (t = 0). (Round your coefficients to two decimal places.) N(t) = (b) Roughly how many articles were written from 1983 to 2003? (Round your answer to the nearest whole number.) thousand articles Submit Answer

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