UlessUF Wei observed that students have difficulty rememl in his lectures. He modelled the percentage of information retained, R, by ti where i is the number of days after the lecture. He found that I day after a lecture, students had forgotten 5 (a) Find the value of p. Use this model to find the percentage of information re after Professor Wei's lecture. (b) Based on his model, Professor Wei believes that his student information from his lecture. (c) State a mathematical reason why Professor Wei might

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