Multiple Choice
Suppose a radioactive substance decays according to the formula 
. How long will it take for the substance to decay to half the original amount?
A) It will take 40 years for the substance to decay to half the original amount.
B) It will take 5,170 years for the substance to decay to half the original amount.
C) It will take 5,281 years for the substance to decay to half the original amount.
D) It will take 5,626 years for the substance to decay to half the original amount.
Correct Answer:
Verified
Correct Answer:
Verified
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