SOLUTION: Hi, It would be great if someone could help me with this question. I don't know what to put into the calculator when it comes to the 'e'. In a chemical reaction the amount c(ug

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: Hi, It would be great if someone could help me with this question. I don't know what to put into the calculator when it comes to the 'e'. In a chemical reaction the amount c(ug      Log On


   

Question 341284: Hi, It would be great if someone could help me with this question. I don't know what to put into the calculator when it comes to the 'e'.
In a chemical reaction the amount c(ug) of the starting material left after time t(seconds) is given by the equation: c = 20e^-0.1t
Find the average rate of change of the function between 1 and 2 seconds
Thanks
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
c = 20e^-0.1t
..
c=+20%2Ae%5E%28%28-0.1%2A1%29%29
c=20%2Ae%5E%28-0.1%29
c=18.096mug
..
Plug the value of 2 seconds
c=+20%2Ae%5E%28%28-0.1%2A2%29%29
c=20%2Ae%5E%28-0.2%29
c=16.374mug
18.096-16.374=1.722mug/second