EXAM 3
Math 106
August 31, 2006
Name
You must show all your work. Partial credit will be given.
1. Twenty-five hundred dollars invested in an account that pays 6.4% interest, compounded
quarterly, will generate an amount A= 2500(1.0164t) dollars in tyears.
(a) How much is in the account after three years and what is the rate of change of the
amount in the account at three years? (10 pts)
(b) Using part aestimate the amount you would expect to be in the account after three and
one half years. (Do not use the equation to find an exact amount, use your previous
answers to arrive at an estimate.) (5 pts)
