Question 17 lodine-131 is a radioactive material that decays according to the function A(t) = Age-0.087t where Ao is the initial amount present and A is the amount present at time t (in days). What is the half-life of lodine-131 to the nearest day? Add your answer 5 P

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section5.6: Exponential And Logarithmic Equations
Problem 54E
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Question 17
lodine-131 is a radioactive material that decays according to the function A(t) = Age™
where Ao is the initial amount present and A is the amount present at time t (in days).
What is the half-life of lodine-131 to the nearest day?
Add your answer
Question 18
Add your answer
Question 19
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Last saved 12:31:20 PM
A thermometer at 100 degrees Fahrenheit is brought into a room with a constant temperature of 60 degrees (F). If the thermometer
is 90 degrees (F) after 4 minutes, what would be its temperature after being in the room for 12 minutes? Round all calculations to at
least three decimal places and choose your answer to the nearest degree Fahrenheit.
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Transcribed Image Text:Question 17 lodine-131 is a radioactive material that decays according to the function A(t) = Age™ where Ao is the initial amount present and A is the amount present at time t (in days). What is the half-life of lodine-131 to the nearest day? Add your answer Question 18 Add your answer Question 19 4 Last saved 12:31:20 PM A thermometer at 100 degrees Fahrenheit is brought into a room with a constant temperature of 60 degrees (F). If the thermometer is 90 degrees (F) after 4 minutes, what would be its temperature after being in the room for 12 minutes? Round all calculations to at least three decimal places and choose your answer to the nearest degree Fahrenheit. Questions Filter (21) 0.087t 5 Points 5 Points 5 Points
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