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ZX-E354124DF32026年9月国际C卷练习 · 第 16 题
2026年9月国际C卷练习 · 原库模块 2 · Q16 参考答案
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 2.75 inches, it has an estimated breaking strength of 9,528.75 pounds. What is the estimated breaking strength, in pounds, of a rope of this type that has a circumference of 3.50 inches?
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