A radioactive substance is decaying exponentially with yearly decay factor 0.95. What is the decade decay factor?
A) 0.1
B) 0.99
C) 9.5
D) 0.6

Name: A radioactive substance is decaying exponentially with yearly decay factor 0.95. What is the decade decay factor? A) 0.1 B) 0.99 C) 9.5 D) 0.6
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Question

Quizplus · Accepted Answer

The decade decay factor can be found by raising the yearly decay factor to the power of 10, since a decade consists of 10 years. Therefore, $0.95^{10} \approx 0.6$.

A Radioactive Substance Is Decaying Exponentially with Yearly Decay Factor