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In this last section of this chapter we have to look at some applications of exponential & logarithm functions.
Compound Interest
This first application is compounding interest & there are in fact two separate formulas which we'll be looking at here. Let's get first those out of the way.
If we were to put P dollars in an account which earns interest at a rate of r (written as a decimal) for t years (yes, it have to be years) then,
1. if interest is compounded m times per year we will have t m
A = P (1 + (r /m)tm
dollars after t years.
2. if interest is compounded continuously then we will have
A = Pert
If m
find the number of hours it would take to drive 168 miles at an average rate of 48 miles an hour. use the formula d=rt
2x+5=-8
(x2+6x+5)/(x-2)
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Alex lives .4 miles from the park, beth lives .8 miles from the park. To run equal distances Alex runs 8 times around the park and Beth run 6 times around the part. Write an equati
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