1 . 已知抛物线
与直线
有两个交点
,
,抛物线
与直线
的一个交点是
,则m的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6ddc0a29bfef85c1441d02ff117a183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50866229ec5a3640fb250f9bd2192b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a16a46f03535c5af872fa8fa9f21a431.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49a31f8e8dba418bd5d886998ef8d17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a97d52d5567e06d42d72842339602042.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50866229ec5a3640fb250f9bd2192b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2157b41548f02a86a438e63238719841.png)
A.![]() | B.![]() | C.6或2 | D.![]() ![]() |
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2 . 如图,将一张圆形纸片(圆心为点O)沿直径MN对折后,按图1分成六等份折叠得到图2,将图2沿虚线BA剪开,再将△AOB展开得到如图3的一个六角星,若
,则∠OBA的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40bc83b0ba099574d800d84c2c32d52.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/7/1aea8b5e-9359-488d-9299-26eaa460a040.png?resizew=412)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 如图,O是正方形ABCD对角线AC上一点,OE⊥OD,∠OED=45°,E在AB上,结论:①∠
;②
;③
;④若
,则
,其中正确结论的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e364d1b450b0260737b46afe0220cd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a9987c504b41d057d335b9950e3e9ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4386acc94970da503bf1cd6bcf1da09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b2f20d1c4e14fb8f1a359c804d3b534.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25af8eda40e561c973ef67cd57b09c80.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/1/006030be-fd85-40c0-849f-1a9a962e2ee9.png?resizew=132)
A.1 | B.2 | C.3 | D.4 |
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4 . 如图,一个边长分别是6,8,10的直角三角形的一个顶点与正方形的点A重合,另两个顶点在正方形的两边BC,CD上,则正方形的面积是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/31/e82ca68c-b9c5-4a67-81f9-0c5ff6414c2b.png?resizew=131)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 如图,E,F是正方形ABCD的边AD上两个动点,满足
,连接CF交BD于点G.连接BE交AG于点H.若正方形的边长为4,则线段DH长度的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff56ea00ca90825f3d95809de24f639.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/31/a34234b8-6c89-4dec-87ad-d2ab9bbba63b.png?resizew=132)
A.![]() | B.![]() | C.3 | D.3.5 |
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6 . 依次将正整数1,2,3,…的平方数排成一串:149162536496481100121144…,排在第1个位置的数字是1,排在第5个位置的数字是6,排在第10个位置的数字是4,排在第898个位置的数字是( )
A.1 | B.4 | C.5 | D.9 |
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7 . 如图,已知E是正方形ABCD中AB边延长线上一点,且
,连接CE、DE,DE与BC交于点N,F是CE的中点,连接AF交BC于点M,连接BF.有如下结论:①
;②
;③
;④
.其中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/19/b07cb7e3-5614-4bfa-9bc6-a0f2d5af6988.png?resizew=180)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3d2d3643a9579f2c693ef86909441e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee0fc7eed80f5d659e4bcecae5bb9327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90b52c5f6e3019241125281719eec921.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a732e77144473ac5879c4b845fe15752.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46bdba99e860fadc76ff8fbcd20763e0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/19/b07cb7e3-5614-4bfa-9bc6-a0f2d5af6988.png?resizew=180)
A.①②③ | B.①②④ | C.②③④ | D.①②③④ |
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8 . 正比例函数
与反比例函数
的图象交于点A,B,以下结论错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b343d77ee4dced82ecc479206c42977d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/646e11d5bff57e56ce82c2339f2d71ce.png)
A.点A、B关于原点对称 | B.k的值可以为![]() |
C.若点![]() ![]() ![]() ![]() | D.当k的值是1时,![]() |
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9 . 在数学探究活动课中,小华进行了如下探究:如图1,正三棱柱
容器中注入了一定量的水,若将侧面
固定在地面上,如图2所示,水面恰好为
(水面与
,
,
,
分别相交于
,
,
,
),若将点
固定在地面上,如图3所示,当容器倾斜到某一位置时,水面恰好为
,则在图2中
=( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/22/1fdd0330-36cf-42cd-8d52-6e274703b2e9.png?resizew=566)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ba846c4dec057a9eec4174306efd06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82901484b0b4b192cdd45a88c6163aa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9afac7c616bbb14e1ed428a3c507c7dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d1be9b1e742b25e355af14502549cb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/22/1fdd0330-36cf-42cd-8d52-6e274703b2e9.png?resizew=566)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-12-21更新
|
494次组卷
|
6卷引用:贵州省毕节市部分学校2023届高三上学期12月联合考试数学(理)试题
10 . 如图,矩形
中,
,
,
是
边的中点,
是
边上的动点,
分别是
的中点,随着点
的运动,线段
长( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/027a42dc-2878-49b9-9f12-8f748db501b9.png?resizew=152)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6670479a0083dd2dfd5ad55b47b1ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/689c9bf39f12cbd610dabf94ad41b1f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/027a42dc-2878-49b9-9f12-8f748db501b9.png?resizew=152)
A.保持不变,长度为![]() | B.保持不变,长度为![]() |
C.不断增大 | D.先增大,后减小 |
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