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Exponential Growth and Decay  Problem 7 457 views
Since we know the halflife time for many elements that naturally occur in nature, we can use exponential modeling to describe decay of organic material and make predictions about the age of fossils based on how much material is left. Here, we look at Carbon14 to predict the age of a fossil. Keep in mind that for all halflives, the ratio of amount after time to starting amount will be 1/2.
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Exponential Growth and Decay
Problem 1 4,493 viewsWhen Archeologists found King tuts tomb, they found a wooden stick that had 71% of its original carbon14 amount.
Using C14 dating and r = 0.00012 to figure out the age of the tomb. 
Exponential Growth and Decay
Problem 2 3,369 viewsThe amount of a drug in ones blood decreases according to A(t) = 10e^{2t}, with t in hours.
a) How much remains after 2 hours?b) When will there be half the original amount? 
Exponential Growth and Decay
Problem 3 2,438 viewsNumber of rabbits on a farm increases according to N(t) = 200e^{0.3t}, with t in months.
a) initial amountb) How many after 10 months?c) How long to triple? 
Exponential Growth and Decay
Problem 4 436 views 
Exponential Growth and Decay
Problem 5 399 views 
Exponential Growth and Decay
Problem 6 330 views 
Exponential Growth and Decay
Problem 7 456 views 
Exponential Growth and Decay
Problem 8 329 views
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