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2024年12月B卷 · 第 19 题

2024年12月B卷 · 原库模块 2 · Q19 原库参考解析

A quadratic function models the height, in feet, of an object above the ground in terms of the time, in seconds, after the object was launched. According to the model the object was launched from a height of 0 feet and reached its maximum height of 1,600 feet 10 seconds after it was launched. Based on the model, what was the height, in feet, of the object 7 seconds after it was launched?

支持整数、小数和分数;循环小数建议填写分数,不需要写单位。