Quantity A: the shortest distance between the line x+y=3 and 2x+2y=4Quantity B:

游客2024-01-12 29

问题 Quantity A: the shortest distance between the line x+y=3 and 2x+2y=4
Quantity B: 1

选项 A、Quantity A is greater.
B、Quantity B is greater.
C、The two quantities are equal.
D、The relationship cannot be determined from the information given.

答案 B

解析直线2x+2y=4相当于x+y=2，两条直线x+y=3和x+y=2可以表示成下图所示，它们之间的最短距离当然小于1，选择B。

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Quantity A: the shortest distance between the line x+y=3 and 2x+2y=4Quantity B:

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Onanumberline,thedistancebetweenthetwopointswithcoordinates-5and1

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Whatisthedistancebetweenthepoints(0,5)and(5,0)?UsetheDistanceFormu

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环状染色体是A.染色体长臂两端连接形成环状 B.染色体短臂两端连接形成环状