G19 The half-life of insecticide DDT is 31 years. If a farmer uses 20 gm then how much will still be active after 13 yO A= 20(3)I gmO A= 20(2) gmO A=20(-2)# gmO None of theseO A= 20(-3) gm

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Answered: The half-life of insecticide DDT is 31…

The half-life of insecticide DDT is 31 years. If a farmer uses 20 gm then how much will still be active O A = 20(3) O A= 20(2) * gm gm %3D O A=20(-2)# gm O None of these A = 20(-3) gm

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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G19

The half-life of insecticide DDT is 31 years. If a farmer uses 20 gm then how much will still be active after 13 y
O A= 20(3)
I gm
O A= 20(2) gm
O A=20(-2)# gm
O None of these
O A= 20(-3) gm

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