Posted: December 30th, 2021

2. A certain calculator manufacturer estimates that they sell approximately S(t) calcula-tors each year, where t is number of years since 2000 (so they sold S (1) calculators inthe year 2001), where S(t) = 10000 — 9000601“.(a) Calculate S’(t) by hand.(b) Calculate :hm S’ (t) Explain what your answer means in terms of the rate of—>oochange of calculators sold each year. (c) Does the rate of change of calculators sold ever equal zero?

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