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Combined SAT Scores in the United States Could Be Approximated

Question 36

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Combined SAT scores in the United States could be approximated by Combined SAT scores in the United States could be approximated by   in the years 1965 - 1986. Here t is the number of years since 1965, and T is the combined SAT score average for the United States. Find all points of inflection of the graph of T , and interpret the result. Enter your answers rounded to the nearest hundredth. in the years 1965 - 1986. Here t is the number of years since 1965, and T is the combined SAT score average for the United States. Find all points of inflection of the graph of T , and interpret the result. Enter your answers rounded to the nearest hundredth.

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