Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter5: Exponential And Logarithmic Functions
Section5.4: Exponential And Logarithmic Equations
Problem 10ECP
Related questions
Question
![The radioactive isotope of lead, Pb-209, decays at a rate proportional to the amount present at time t and has a half-life of 3.3 hours. If 1 gram of this isotope is present initially, how long will it take for 70% of the
lead to decay? (Round your answer to two decimal places.)
hr](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffa820f32-890a-42a1-b992-4b8402b326b5%2F08f4af11-4447-4cc1-8796-f7c2ea567e0d%2F8eurzei_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The radioactive isotope of lead, Pb-209, decays at a rate proportional to the amount present at time t and has a half-life of 3.3 hours. If 1 gram of this isotope is present initially, how long will it take for 70% of the
lead to decay? (Round your answer to two decimal places.)
hr
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