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ZX-433B800A6724年8月北美C卷练习 · 第 14 题
24年8月北美C卷练习 · 原库模块 1 · Q14 原库参考解析
\( C(t)=240(\frac{54}{53})^{t−14}+7 \)
The function C gives the estimated number of cephalopods, a class of marine animal, in a certain area, where t is the number of months since a study began. How many months after the study began was the number of cephalopods in the area estimated to be 247?
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