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A Radioactive Substance Decays By 12%12 \% Every Year QQ , of a 10 Gram Sample Remaining After

Question 59

Multiple Choice

A radioactive substance decays by 12%12 \% every year. Which of the following is the formula for the quantity, QQ , of a 10 gram sample remaining after tt years?


A) Q=10(0.88) tQ=10(0.88) ^{t}
B) Q=10(1.12) tQ=10(1.12) ^{t}
C) Q=10(−1.12) tQ=10(-1.12) ^{t}
D) Q=10(−0.88) tQ=10(-0.88) ^{t}

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