Multiple Choice
Suppose that a certain radioactive substance has a half-life of 45 years. If there are presently 1,920 milligrams of the substance, how much, to the nearest milligram, will remain after 180 years?
A) Q = 130 milligram
B) Q = 120 milligram
C) Q = 135 milligram
D) Q = 95 milligram
E) Q = 125 milligram
Correct Answer:
Verified
Correct Answer:
Verified
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