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ZX-EEA65093352024年10月北美A卷 · 第 15 题
2024年10月北美A卷 · 原库模块 1 · Q15 原库参考解析
A sample of a certain isotope takes 29 years to decay to half its original mass. The function\( s\left(t\right)=208\left(0.5\right)^{\frac{t}{29}} \) gives the approximate mass of this isotope, in grams, that remains t years after a 208-gram sample starts to decay. Which statement is the best interpretation of \( s\left(87\right)=26 \) in this context?
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