Answer:
[tex]P(t)=50(1.99)^{t/12}[/tex]
Step-by-step explanation:
The problem can be modeled by using the compound growth formula.
Given, Initial number P_0 of people who Nicholas sent the chain letter t=50
The growth rate, r =99%=0.99
Period of Growth,k =12 Weeks
[tex]P(t)=P_0(1+r)^{t/k}[/tex]
Therefore, in any week (t) after Nicholas initially sent the mail, the number of people who receive the email is modeled by the function:
[tex]P(t)=50(1+0.99)^{t/12}\\\\P(t)=50(1.99)^{t/12}[/tex]