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ZX-024096F122机考OG1 · 第 4 题
机考OG1 · 原库模块 2 · Q4 原库参考解析
s =40+3tThe equation gives the speed s, in miles per hour, of a certain car t seconds after it began to accelerate. What is the speed, in miles per hour, of the car 5 seconds after it began to accelerate?
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