Concept explainers
Carbon dating. How old is an ivory tusk that has lost
2. Radioactive decay. Carbon-14 has a decay rate of
a) Let
Find the exponential function that models the decay.
b) Suppose 200
c) What is the rate of change of the amount of carbon-14 after 800 yr?
d) After how many years will half of the original 200

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Chapter 2 Solutions
CALCULUS & ITS APPLICATIONS MYLAB
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