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1 . 如图,大矩形分割成五个小矩形,④号、⑤号均为正方形,其中⑤号正方形边长为1.若②号矩形的长与宽的差为2,则知道哪个小矩形的周长,就一定能算出这个大矩形的面积( )
![](https://img.xkw.com/dksih/QBM/2022/8/30/3055621145567232/3056956820250624/STEM/07d0cd4604eb4ee5abbd7cba2237c9d1.png?resizew=269)
![](https://img.xkw.com/dksih/QBM/2022/8/30/3055621145567232/3056956820250624/STEM/07d0cd4604eb4ee5abbd7cba2237c9d1.png?resizew=269)
A.①或③ | B.② | C.④ | D.以上选项都可以 |
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2 . 如图,正方形ABCD中,对角线AC、BD相交于点O,点E是BC的中点,AE交BD于点F,
于点G,连接OG,则下列结论中①
,②
,③
,④
,正确的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5486478d317b66a6830138d6e87f752.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae843cad075fc73e09fd77aa5a1d9827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61db0882323fec7c2afc70231c9de208.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad589f9568976df7dd0f3bd1a8df5f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45fa44d10b97c6b7e42a68faa0018c4d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/2/ed8b6d5b-f548-4dc1-a46b-89f06823a13a.png?resizew=244)
A.1 | B.2 | C.3 | D.4 |
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3 . 已知抛物线
,当
时,
;当
时,
.下列判断:
①
;②若
,则
;③已知点
在抛物线
上,当
时,
;④若方程
的两实数根为
,则
.其中正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b288ab1b2e56fd8a11d0a766d9fe0657.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a57458464618fcf619375a93d3c66d69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a57458464618fcf619375a93d3c66d69.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3634f7607140d0751fc020f701a1270e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e4cc00c283519973f7f8e1274b5c733.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc863004a6fedab9a38c96e7dabe90b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd931b890715d1b8c079c3df760fb782.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b288ab1b2e56fd8a11d0a766d9fe0657.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c959f66cc10bf1420eac249e74d2009.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d83cb3b6dacb13f2b792e7c14a8f84be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d854a1e025a926f5d1d7e00aa5c121a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd8ca3aa2d1ba52e82613d0d65d800e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0c556b35e2216aeb5b7d8b1b4c140da.png)
A.1个 | B.2个 | C.3个 | D.4个 |
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4 . 如图,
,以点O为圆心,适当长为半径画弧,交OM于点A,交ON于点B;分别以点A,B为圆心,大于
的长为半径画弧,两弧在∠MON的内部相交于点P,画射线OP;连接AB,AP,BP,过点P作PE⊥OM于点E,PF⊥ON于点F.则以下结论错误的是( )
![](https://img.xkw.com/dksih/QBM/2022/8/25/3052111679283200/3057309413253120/STEM/8027dfe60fdc48edbc480763ca40289d.png?resizew=153)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14b5d523373b8cbfa33e42a1bf154544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d49404351575703cfe8325d1352ec9.png)
![](https://img.xkw.com/dksih/QBM/2022/8/25/3052111679283200/3057309413253120/STEM/8027dfe60fdc48edbc480763ca40289d.png?resizew=153)
A.![]() | B.![]() |
C.![]() | D.四边形![]() |
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5 . 我国神舟十三号载人飞船和航天员乘组于2022年4月16日返回地球,结束了183天的在轨飞行时间.从2003年神舟五号载人飞船上天以来,我国已有13位航天员出征太空,绕地球飞行共约2.32亿公里.将数据232000000用科学记数法表示为( )
A.0.232×109 | B.2.32×109 | C.2.32×108 | D.23.2×108 |
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6 . 在对一组样本数据进行分析时,小凡列出了方差的计算公式:
,根据公式不能得到的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db3467513aca8c3c227bf23279176e68.png)
A.众数是6 | B.平均数是8 | C.方差是6 | D.中位数是8 |
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2022-09-01更新
|
90次组卷
|
3卷引用:安徽省六校教育研究会2022-2023学年高一上学期入学考试数学试题
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7 . 某药店在今年6月份购进了一批口罩,这批口罩包括一次性医用外科口罩和N95口罩,且两种口罩的只数相同,其中一次性医用外科口罩花费1600元,N95口罩花费9600元.已知一次性医用外科口罩的单价比N95口罩的单价少10元,那么一次性医用外科口罩的单价为多少元?设一次性医用外科口罩单价为x元,则列方程正确的是( )
A.![]() | B.![]() |
C.![]() | D.![]() |
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2022-09-01更新
|
62次组卷
|
2卷引用:安徽省六校教育研究会2022-2023学年高一上学期入学考试数学试题
8 . 如图,点M是正方形ABCD内一点,△MDC是等边三角形,连接AM、BM,对角线BD交CM于点N,给出下列结论:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/1/1711fdec-4470-48f4-87e0-80105e51492c.png?resizew=126)
①
,②
,
③
,④
.
其中正确结论的个数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/1/1711fdec-4470-48f4-87e0-80105e51492c.png?resizew=126)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1f7b6542a43ef6be3755352ffb46596.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a69fcb7ed01df495de6fdd2a94f7d5.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccca2395d848895b1e2cef3704b537ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1af50b5a9d82ec61ebacb960b1c0235c.png)
其中正确结论的个数为( )
A.1个 | B.2个 | C.3个 | D.4个 |
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9 . 如图,已知点
,点B是
轴正半轴上的一动点,以
为边作等腰直角三角形
,使点
在第一象限,
,设点
的横坐标为
,点
的纵坐标为
,则
与
的函数关系式是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/2/9958bf10-d45b-4c43-aad6-7ecfa3352b59.png?resizew=192)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383f12cb70ca55eba4ff012771dbfa9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8e9ec412ea0355e4e5cd06c60e5fee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/2/9958bf10-d45b-4c43-aad6-7ecfa3352b59.png?resizew=192)
A.![]() | B.![]() |
C.![]() | D.![]() |
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10 . 下列各数均由数字
、
组合而成,其中最大的数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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