1 . 若一个三角形的两边长分别是
和
,第三边的边长是方程
的一个根,则这个三角形的周长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d0564041943f94c616654f03b2666f.png)
A.![]() | B.![]() ![]() | C.![]() | D.![]() ![]() |
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2 . 如图,在平面直角坐标系中,菱形ABCD的边AB在x轴上,
,点E是菱形ABCD的对称中心,反比例函数
的图象经过点D、E.若
,则k的值等于( )
![](https://img.xkw.com/dksih/QBM/2021/10/13/2828273778827264/2831470568841216/STEM/40a01c8b-a509-4a6f-a4f5-4311cffa73fa.png?resizew=211)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4f5eec0addba78f2e0cdfb7ecc59a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/412de93a9a3a2dfbb727b793453c4196.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8748dc55e2f45bc37fc4d84d7310f79.png)
![](https://img.xkw.com/dksih/QBM/2021/10/13/2828273778827264/2831470568841216/STEM/40a01c8b-a509-4a6f-a4f5-4311cffa73fa.png?resizew=211)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 若数
使关于
的不等式组
无解,且使关于y的分式方程
的 解为正数,则符合条件的所有整数
的和为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7335af4873f25e68bd0d3d59e02a1de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/756a9fb7db8281912702a38a1db1a959.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.-4 | B.-2 | C.0 | D.2 |
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4 . 估计
的值应在( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eee36e43fb16486b674b1de7828e8088.png)
A.2和3之间 | B.3和4之间 | C.4和5之间 | D.5和6之间. |
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5 . 已知
,则代数式
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ff5dac1b5b83417306443c1b362fb65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e7d52ecbd898271b0d546f4c2cf9a4.png)
A.5 | B.3 | C.-3 | D.8 |
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6 . 下列图案都是由若干个全等的等边三角形按一定的规律排列而成,按此规律,第8个图案中的等边三角形的个数为( )
![](https://img.xkw.com/dksih/QBM/2021/10/13/2828273778827264/2831470568792064/STEM/d93252f905f04fd79c6781b210eb62cb.png?resizew=443)
![](https://img.xkw.com/dksih/QBM/2021/10/13/2828273778827264/2831470568792064/STEM/d93252f905f04fd79c6781b210eb62cb.png?resizew=443)
A.28 | B.32 | C.36 | D.40 |
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7 . 下列图形中既是轴对称图形,又是中心对称图形的是( )
A.![]() | B.![]() |
C.![]() | D.![]() |
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8 . 如图,
与
位似,点
为位似中心,已知
,则
与
的周长比为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/b24dc552-563d-45b8-91c5-d28914038077.png?resizew=252)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1500b70303010c9610ba177446717a1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/b24dc552-563d-45b8-91c5-d28914038077.png?resizew=252)
A.1:2 | B.1:3 | C.1:4 | D.1:5 |
您最近一年使用:0次
名校
9 . 关于
的分式方程
的解为正数,且使关于
的一元一次不等式组
有解,则所有满足条件的整数
的值之和为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/535a072514dbbd2db18c94e4a8270436.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bff91dcbc14bccd2f6d818330b8941eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.-2 | B.-3 | C.-4 | D.-5 |
您最近一年使用:0次
2021-09-16更新
|
92次组卷
|
2卷引用:重庆复旦中学2021-2022学年高一上学期入学诊断数学试题
名校
10 . 如图,
为⊙O的直径,弦
于点E,直线l切⊙O于点C,延长
交l于点F,若
,
,则
的长度为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/22/840ff990-93ca-4c24-8fe9-c739d1540209.png?resizew=160)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b0393ce62b24aa5f9b740d4cc6743b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da4c00c5aa83ae71de0d9b3f807f45e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/22/840ff990-93ca-4c24-8fe9-c739d1540209.png?resizew=160)
A.2 | B.![]() | C.![]() | D.4 |
您最近一年使用:0次
2021-09-15更新
|
58次组卷
|
2卷引用:重庆复旦中学2021-2022学年高一上学期入学诊断数学试题