2.3 11Letter E answers

Students in a zoology class took a final exam. They took equivalent forms of the exam at monthly intervals thereafter. After t months, the average score S(t), as a percentage, was found to be given by the following equation, where t2 0. Complete parts (a) through (e) below. S(t) =74-14 In (t + 1), Osts 80 I lle average sure was 14 70. (ROUTI TO One GetIllial place as needed. ) b) What was the average score after 4 months? The average score after 4 months was 51.5 % (Round to one decimal place as needed.) c) What was the average score after 24 months? The average score after 24 months was 28.9 %. (Round to one decimal place as needed.) d) Find S'(t). 14 S'(t) = t + 1 e) Find S'(4) and S'(24), and interpret the meaning of these numbers. S'(4) =, which means that after 4 months, the average score is by points a month and S'(24) = , which means that after 24 months, the average score is by points a month. (Type integers or decimals.) X VI DO More