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OpenStudy (anonymous):
HELP The decay of 923 mg of an isotope described by the function A(t)= 923e^-0.027t, where t is time in years. Find the amount left after 76 years. Round your answer to the nearest mg. Show all of your work for full credit.
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OpenStudy (anonymous):
@PRAETORIAN.10
OpenStudy (kc_kennylau):
Well, substitute t=76 to the function :)
jimthompson5910 (jim_thompson5910):
be careful to type the parenthesis in as well you need to type in 923*e^(-0.027*76) take note as to how t was replaced with 76 and how I have the parenthesis set up
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