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ZX-83AF8287B52025年6月国际B卷 · 第 10 题
2025年6月国际B卷 · 原库模块 2 · Q10 原库参考解析
\( m\left(t\right)=-0.0274\left(\frac{t}{7}\right)^2+7.3873\left(\frac{t}{7}\right)+75.032 \)
The function m gives the predicted body mass m(t), in kilograms (kg), of a male giraffe t days after it was born in a wildlife reserve, where \( t\le390 \). Which of the following is the best interpretation of the statement “ m(140) is approximately equal to 212” in this context?
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