Quote:
Originally Posted by mathcalculushelp  F(t)=86-6ln(t+1)
= 86- 6 ln 2
= 86-4.15
= 81.8 ...??
is this what we are supposed to do?
or like shall i be plugging in f(-1) ? | Differentiate F(t) with respect to t (which gives the rate of decrease in scores per month), then set that equal to -1 and solve for t (because that is what is asked for).
CB
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