Posted by Alec on Thursday, July 19, 2012 at 10:17pm.
The length (in centimeters) of a typical Pacific halibut t years old is approximately
f(t) = 210(1 − 0.94e^−0.2t).
(a) What is the length of a typical 9yearold Pacific halibut?
cm
(b) How fast is the length of a typical 9yearold Pacific halibut increasing?
cm/yr
(c) What is the maximum length a typical Pacific halibut can attain?
cm

Calc  Reiny, Thursday, July 19, 2012 at 10:30pm
a) plug in t=9
b) take the derivative
c) as t gets larger, e^.2t gets smaller
so .94e^.2t gets smaller
so you are left with
f(t) = 210(1  0) = 210

Calc  Alec, Thursday, July 19, 2012 at 10:37pm
b) Take derivative and plug in 9?
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