Asked by j

Participants in a psychology experiment were able to memorize an average of M words in t minutes, where M = −0.001t3 + 0.1t2. Use the following graph.Estimate the number of words memorized after 14 min.
m
20 /
18 /
16 /
14 /
12 /
10 /
8 /
6 /
4 /
2/02468101214161820t





Answers

Answered by Bosnian
t = 14 min

M = −0.001 * t ^ 3 + 0.1 * t ^ 2

M = −0.001 * 14 ^ 3 + 0.1 * 14 ^ 2

M = −0.001 * 2744 + 0.1 * 196

M = - 2.744 + 19.6

M = 16.856 words
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