SOLUTION: Annual sales S for a particular product t years after it is introduced is given by the function S=2000/1+4e^-t/2. When will sales reach 1100 units per year?

Question 551355: Annual sales S for a particular product t years after it is introduced is given by the function S=2000/1+4e^-t/2. When will sales reach 1100 units per year?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Annual sales S for a particular product t years after it is introduced is given by the function S=2000/1+4e^-t/2. When will sales reach 1100 units per year?
:
Assume the equation is:

:
1100 =
:
= 2000
:
=
:
= 1.8182
:
= 1.8182 - 1
:
= .8182
:
=
:
= .2045
:
= ln(.2045)
= -1.587; the nat log of e = 1
t = -1.587 * -2
t = +3.174 yrs; for sales to reach 1100 units
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