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Mathematics 8 Online
OpenStudy (anonymous):

A companys total cost in millions of dollars is given by C(t)=120-70e^-1 where t=time in years. Find the marginal cost when t=5

zepdrix (zepdrix):

\(\Large\bf \color{#CC0033}{\text{Hi Marie. Welcome to OpenStudy! :)}}\)

zepdrix (zepdrix):

\[\Large\bf\sf C(t)\quad=\quad 120-70e^{-t}\]Was the exponential supposed to be e^-t like this?

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