Answered: how long ago was the map drawn up?…

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter5: Exponential And Logarithmic Functions

Section: Chapter Questions

Problem 28T: The half-life of radioactive actinium ( 227AC ) is 21.77 years. What percent of a present amount of...

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Mikey and his gang of friends find a map leading to a treasure owned by a pirate living in the 17th century. To authenticate the map, Mikey carbon-dates the map by measuring the amount of carbon-14 currently in the map relative to the amount originally present when the map was drawn and finds that 96% of the carbon-14 is still present. If the half-life of carbon-14 is 5730 years, how long ago was the map drawn up? Round to the nearest year. Does the age of the map support its authenticity?

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