At the beginning of an experiment, a scientist has 372 grams of radioactive goo. After 225 minutes, her sample has decayed to 23.25 grams. What is the half-life of the goo in minutes?   Find a formula for G(t)G(t), the amount of goo remaining at time tt.G(t)=G(t)=   How many grams of goo will remain after 20 minutes?   You may enter the exact value or round to 2 decimal places.

College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter6: Exponential And Logarithmic Functions
Section: Chapter Questions
Problem 29PT: A radiation safety officer is working with 112 grams of a radioactive substance. After 17 days,...
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At the beginning of an experiment, a scientist has 372 grams of radioactive goo. After 225 minutes, her sample has decayed to 23.25 grams.


What is the half-life of the goo in minutes?  


Find a formula for G(t)G(t), the amount of goo remaining at time tt.
G(t)=G(t)=  


How many grams of goo will remain after 20 minutes?  
You may enter the exact value or round to 2 decimal places.

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