A car rental company charges 60 dollars per day, 12 cents per kilometre driven, and a 40 lollar one-time processing fee for a car rental. a) Write a formula for the cost C (in dollars) of enting a car as a function of the number of days l and the number of kilometres driven k. b) If C = f(d, k), then f(4, 650) = dollars.

A car rental company charges 60 dollars per day, 12 cents per kilometre driven, and a 40 lollar one-time processing fee for a car rental. a) Write a formula for the cost C (in dollars) of enting a car as a function of the number of days l and the number of kilometres driven k. b) If C = f(d, k), then f(4, 650) = dollars.

College Algebra

1st Edition

ISBN:9781938168383

Author:Jay Abramson

Publisher:Jay Abramson

Chapter6: Exponential And Logarithmic Functions

Section6.1: Exponential Functions

Problem 57SE: Repeat the previous exercise to find the formula forthe APY of an account that compounds daily....

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The formula for the amount A in an investmentaccount with a nominal interest rate r at any timet is given by A(t)=a(e)rt, where a is the amount ofprincipal initially deposited into an account thatcompounds continuously. Prove that the percentageof interest earned to principal at any time t can becalculated with the formula I(t)=ert1.
Use your schools library, the Internet, or some other reference source to find real-life applications of approximations of functions.

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