ericasoto1230 ericasoto1230

18-11-2022
Mathematics

Answered

An unknown radioactive element decays into non-radioactive substances. In 880 days the radioactivity of a
sample decreases by 62 percent.
W
(a) What is the half-life of the element?
half-life:
Round to two decimal places.
(days)
(b) How long will it take for a sample of 100 mg to decay to 59 mg?
time needed:
Round to two decimal places.
(days)

Answer :

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