[PreCal] Exponential growth (triple time) HomeworkHelp

Mold grows in a refrigerator at a rate of 8.4%. Suppose 3 square cm of mold are initially found inside a refrig and the mold is left in the refrig for days.

1.Give model of exponential growth? 3e^.084t

2. After, 35 days how many sq cm of mold can be found? 3e^.084*35= 56.75 cm²

3.Find the triple time. Find how long it takes for the amount of initial mold to triple. ???

First off did I do the first two problems right? For #3, would the formula be set up...3=3e^.084t?

Submitted December 13, 2014 at 10:34AM by k7k58 http://ift.tt/1BFx2df HomeworkHelp