Multiple Choice
Initially,three are 50 milligrams of a radioactive substance.The substance decays according to the equation N = 50
,where N is the number of milligrams present after t hours.The number of hours it takes for 10 milligrams to remain is
A) - 
B) - 
C) - 
D) 
E) 50 
Correct Answer:

Verified
Correct Answer:
Verified
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