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A Certain Radioactive Substance Has a Half-Life of 75 Hours

Question 57

Multiple Choice

A certain radioactive substance has a half-life of 75 hours. Find how long it will take, to the nearest hour, for 75% of the radioactivity to be dissipated if the amount of material x satisfies A certain radioactive substance has a half-life of 75 hours. Find how long it will take, to the nearest hour, for 75% of the radioactivity to be dissipated if the amount of material x satisfies (t in hours) . Round your answer to the nearest hour. ​ A) 182 hours B) 171 hours C) 157 hours D) 150 hours E) 31 hours (t in hours) . Round your answer to the nearest hour. ​


A) 182 hours
B) 171 hours
C) 157 hours
D) 150 hours
E) 31 hours

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