. Radioactive Decay The half-life of palladium-100 is4 days. After 20 days a sample has been reduced to a massof 0.375 g.(a) What was the initial mass of the sample?(b) Find a function that models the mass remaining aftert days.(c) What is the mass after 3 days?(d) After how many days will only 0.15 g remain?
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
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. Radioactive Decay The half-life of palladium-100 is
4 days. After 20 days a sample has been reduced to a mass
of 0.375 g.
(a) What was the initial mass of the sample?
(b) Find a function that models the mass remaining after
t days.
(c) What is the mass after 3 days?
(d) After how many days will only 0.15 g remain?
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