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Mathematics
Problem
A company’s daily revenue, in dollars, from selling a product
t
t
t
days after launch is modeled by
R
(
t
)
=
100
t
e
−
0.05
t
,
t
≥
0.
R(t)=100t\,e^{-0.05t}, \quad t\ge 0.
R
(
t
)
=
100
t
e
−
0.05
t
,
t
≥
0.
Approximately on which day is the revenue maximized? a)
40
40
40
b)
100
100
100
c)
20
20
20
d)
10
10
10
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