College Algebra

Question

An artifact originally had 16 grams of​ carbon-14 present. The decay model

Upper A equals 16 e Superscript negative 0.000121 tA=16e−0.000121t

describes the amount of​ carbon-14 present after t years. Use the model to determine how many grams of​ carbon-14 will be present in

6847

years.

Answer 1

Originally the artifact had 16 grams of carbon-14. use the model A = 16e^-0.000121t to determine grams of carbon-14 remining after 6847 years..

Substitute 6847 for t and multiply by -0.000121 to get -0.828487. The equation is now A = 16e^-0.828487.

find the value of e^-0.828487 to be 0.436709528 and multiply by 16 to get A=6.98735 grams remaining.