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2024年10月B卷 · 第 9 题

2024年10月B卷 · 原库模块 2 · Q9 原库参考解析

For a certain type of rope, the equation \( y=900ax^2 \) , where a is a constant, gives the estimated breaking strength y , in pounds, of a rope with a circumference of x inches. Based on this equation, if a rope of this type has a circumference of 0.75 inches, it has an estimated breaking strength of 708.75 pounds. What is the estimated breaking strength, in pounds, of a rope of this type that has a circumference of 4.50 inches?

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