如图1,矩形
中,E为
上一点
,点P沿折线
以每秒1个单位长度的速度从点B匀速运动到点D.设运动时间为t秒,
,图2是点P运动过程中y随t变化的函数图象.当
时点p运动到点D,则a的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a44441bcb85f1ebc1d2bc09ee8737688.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926584088b939200d88e64318f2d4e6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/776cfd51fe5f3352e435365c10bc1796.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f486d40990b02693479a2166e64358b7.png)
A.22 | B.23 | C.24 | D.25 |
更新时间:2024-05-17 22:57:21
|
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【推荐1】如图1,在
中,点P从点A出发向点C运动,在运动过程中,设x表示线段
的长,y表示线段
的长,y与x之间的关系如图2所示,下列结论不正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/11/c8fe3c25-5090-4e0b-a6ed-88597acafae9.png?resizew=408)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
【推荐2】如图
中,
,
,分别以
、
、
为半径作半圆,若记图中阴影部分的面积为
,
为
,则下列关于
的图像中正确的是( )
![](https://img.xkw.com/dksih/QBM/2022/4/22/2967781751308288/2990580077969408/STEM/cc0065e5-caa6-44e0-8ed1-bf7eca2abafc.png?resizew=244)
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A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】如图,在
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是
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,
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/7/730cc31b-2927-47f2-8472-0e32f4da9d97.png?resizew=138)
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A.60![]() | B.30![]() | C.120![]() | D.65![]() |
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【推荐2】如图,圆上有两点
,
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交于
点E,交
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![](https://img.xkw.com/dksih/QBM/2019/4/25/2190113941053440/2190270243192832/STEM/ba06309df92c4bd28cb0bee7f4e8486b.png?resizew=212)
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A.10 | B.6 | C.5 | D.4 |
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【推荐1】如图,已知正方形
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,
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【推荐2】矩形ABCD中,E,F,M为AB,BC,CD边上的点,且AB=6,BC=7,AE=3,DM=2,EF⊥FM,则EM的长为
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