A radioactive substance has a half-life of one week. In other words, at the end of every week the level of radioactivity is half of its value at the beginning of the week. The initial level of radioactivity is 20 counts per second.  a) The function that models the radioactivity remaining at the end of each week is   . (Enter your equation without spaces, with parentheses around the b value, and using a caret for the exponent, such as y=3(1.25)^t .)

College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter6: Exponential And Logarithmic Functions
Section6.7: Exponential And Logarithmic Models
Problem 16TI: Recent data suggests that, as of 2013, the rate of growth predicted by Moore’s Law no longer holds....
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A radioactive substance has a half-life of one week. In other words, at the end of every week the level of radioactivity is half of its value at the beginning of the week. The initial level of radioactivity is 20 counts per second. 

a) The function that models the radioactivity remaining at the end of each week is   . (Enter your equation without spaces, with parentheses around the b value, and using a caret for the exponent, such as y=3(1.25)^t .)

 
 

 

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