Mathematics

Adrien Dudley

7 July, 03:30

Derek sent a chain letter to his friends, asking them to forward the letter to more friends. The group of people who receive the email gains 9/10 of its size every week and can be modeled by a function, P, which depends on the amount of time, t (in weeks).

Derek initially sent the chain letter to 40 friends.

Write a function that models the group of people who receive the email t weeks since Derek initially sent the chain letter

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