名校
1 . 新冠肺炎疫情防控期间,学校为做好预防消毒工作,开学初购进A,B两种消毒液,购买A种消毒液花费了2500元,购买B种消毒液花费了2000元,且购买A种消毒液数量是购买B种消毒液数量的2倍,已知购买一桶B种消毒液比购买一桶A种消毒液多花30元.
(1)求购买一桶A种、一桶B种消毒液各需多少元?
(2)为了践行“把人民群众生命安全和身体健康摆在第一位”的要求,加强学校防控工作,保障师生健康安全,学校准备再次购买一批防控物资.其中A,B两种消毒液准备购买共50桶.如果学校此次购买A、B两种消毒液的总费用不超过3250元,那么学校此次最多可购买多少桶B种消毒液?
(1)求购买一桶A种、一桶B种消毒液各需多少元?
(2)为了践行“把人民群众生命安全和身体健康摆在第一位”的要求,加强学校防控工作,保障师生健康安全,学校准备再次购买一批防控物资.其中A,B两种消毒液准备购买共50桶.如果学校此次购买A、B两种消毒液的总费用不超过3250元,那么学校此次最多可购买多少桶B种消毒液?
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2023-02-10更新
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249次组卷
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3卷引用:四川省巴中绵实外国语学校 2022-2023学年高一上学期9月月考数学试题
名校
2 . 已知
,
,
,则代数式
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c7158ad01259cb1687fa731d801dade.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78ce6514d1e43b1e750d12d19b9d73e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90d128c3326993586a43def05dd744e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9727dcfd16711d45893f0b354285b105.png)
A.![]() | B.3 | C.6 | D.12 |
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名校
3 . 在△
中,
,
,
,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/787ac5e13622afab5e9f8603afe42356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241465bb8b380fc37d46763241c92e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b36a1938df65db2b68bf7595b97bafa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cff41783418c5e11f70c71ee2e137566.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c083720eb4e9cd601b17a74b27a89827.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
4 . 一元二次方程
的解是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a678cd018f89c3518645bc8439805ce.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
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5 . 如图,将
绕点
按顺时针方向旋转一定角度得到
,点
的对应点
恰好落在
边上,若
,
,则
的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/53a5a541-d489-4a79-8b85-62f5328c2b31.png?resizew=149)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c513dca3b8c31bc8d0ed4301e94cc1e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbbbb5cd9154733b54fb5e8d3329c90d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b810c5efd7b649ece8bd13f5da48f561.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f52dbad9494cac359ecebe70230e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ffb98f1e3c1317c0db403d3af04bdc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/53a5a541-d489-4a79-8b85-62f5328c2b31.png?resizew=149)
A.1 | B.1.5 | C.![]() | D.0.5 |
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名校
6 . 如图A,B,C是
上的三个点,若
,则
等于( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/b58b67ac-e6cf-4d61-bc82-6c0085adce99.png?resizew=123)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ccf6d60ba8318b72076ab8944351788.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/b58b67ac-e6cf-4d61-bc82-6c0085adce99.png?resizew=123)
A.50° | B.80° | C.100° | D.130° |
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7 . 下列命题中,真命题的是( )
A.对角线互相垂直的四边形是菱形 | B.对角线互相垂直平分的四边形是正方形 |
C.对角线相等的四边形是矩形 | D.对角线互相平分的四边形是平行四边形 |
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名校
8 . (1)已知
是关于
的方程
的两个实数根,且满足
,求实数
的值.
(2)解方程:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/437bceb596deddba816acf6e44e2d2ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2f95d298541bc458981acc8ff52aefa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)解方程:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9cdbd1bbc6f56071cd753d605bab5ae.png)
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9 . 已知
、
、
是
的三边长,
、
满足
,
为奇数,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4e9bb42376c12d7d21702ae8062b25a.png)
_____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e117dcfb23fab828b3ac1455ac04965e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4e9bb42376c12d7d21702ae8062b25a.png)
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10 . (1)如图在
中,
,顶点
分别在反比例函数
与
的图象上.求
的值.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/1/b14f684a-0ec7-4a8a-a34f-6ab020b69135.png?resizew=155)
(2)如图在
中,
,点
分别是
的中点,连接
如果
,求
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa3ed73c69ee962f2cbd1b9f62f38b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ccc37b189fa2cbc269ca0b233dac37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec549f15430d63c3dc6c6e94e7321ee5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5228890352dc67e7f3f4f48893858f23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5deba154ce6502c6687ce41606b0c61e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/1/b14f684a-0ec7-4a8a-a34f-6ab020b69135.png?resizew=155)
(2)如图在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4d40300f25019564cdc2b79b509cf8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/374fe9986ebbc986fc422e514ab93a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/719891731fd2d4c9bb618febabaad4d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c7562a70f609384bf2167d1467df3c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/1/a4ab4852-7c81-405a-8949-2827451bff04.png?resizew=168)
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