1 . 中秋国庆双节期间,全国各地景区景点游客逐渐增多,旅游市场回暖升温.某景区山下的海景酒店有50间海景房,若每间房一天的住宿费用为600元时,房间恰好住满;若将每间房一天的收费标准提升
元(
),则入住的房间数会相应减少x间.
(1)求该温泉酒店每天的收入y元关于x的函数解析式;
(2)若要使该海景酒店每天的收入最多,则每间房的住宿费用可定为多少元?当日收入为多少元?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e23b020e028ba9aee9547e77eaca05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31d7ad0993bc0c9890e91fe05e96bd42.png)
(1)求该温泉酒店每天的收入y元关于x的函数解析式;
(2)若要使该海景酒店每天的收入最多,则每间房的住宿费用可定为多少元?当日收入为多少元?
您最近一年使用:0次
2023-10-19更新
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540次组卷
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5卷引用:福建省福鼎第二中学2023-2024学年高一上学期第一次月考数学试题
福建省福鼎第二中学2023-2024学年高一上学期第一次月考数学试题(已下线)第8章 函数应用综合能力测试-【帮课堂】(苏教版2019必修第一册)黑龙江省哈尔滨市宾县第二中学2023-2024学年高一上学期第三次月考数学试题浙江省杭州市淳安县汾口中学2023-2024学年高二上学期期末模拟数学试题广东省珠海市香樟中学2023-2024学年高一下学期开学收心练习数学试题
名校
解题方法
2 . 下列说法正确的是( )
A.已知向量![]() ![]() ![]() |
B.已知向量![]() ![]() ![]() |
C.若向量![]() ![]() ![]() ![]() |
D.在![]() ![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
2023-09-19更新
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1030次组卷
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4卷引用:福建省宁德市福安市第一中学2023-2024学年高一下学期3月月考数学试题
3 . 抛物线
交
轴于
,
两点,与
轴交于点
,连接
,
.
为线段
上的一个动点,过点
作
轴,交抛物线于点
,交
于点
.
(1)求抛物线的表达式;
(2)设
点的坐标为
,请用含
的代数式表示线段
的长,并求出当
为何值时,
有最大值,最大值是多少?
(3)试探究点
在运动过程中,是否存在这样的点
,使得以
为顶点的三角形是等腰三角形,若存在,请直接写出此时点
的坐标;若不存在,请说明理由.
(4)在(2)的条件下,直线
上有一动点
,连接
,将线段
绕点
逆时针旋转
度,使点
的对应点
恰好落在该抛物线上,直接写出点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90731f6d4190300b33385ce70eb2783a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a18a7caa080988802ba1145b4fe4203.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316ba5cbb31299d683ac6c7dd795db85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea3a3db6d96518255f96ad7fc1ac98f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/17/5ba93605-d185-4d25-97f1-868993619271.png?resizew=168)
(1)求抛物线的表达式;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b62769b7177ef4bc952dc1dd51d6b510.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
(3)试探究点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/557efcd952a41e4a2ed82928445429cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(4)在(2)的条件下,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25b2e7aa38de090bb39fa058323d2eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25b2e7aa38de090bb39fa058323d2eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a17161b28b6ad8f57abc5b11e1b6c671.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
您最近一年使用:0次
名校
4 . 已知
,函数
的图象记为
,
的图象记为
.则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdc873fc03e6e4d3c4ba02f8b1147b20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d405fce6d6100285d9016b8bc9e1371.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
A.函数![]() | B.![]() ![]() |
C.当![]() ![]() ![]() | D.当![]() ![]() |
您最近一年使用:0次
2023-09-13更新
|
338次组卷
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5卷引用:福建省宁德市福安市第一中学2023-2024学年高二下学期第三次月考数学试题
5 . 在一次数学活动课上,老师要求同学们画15°、30°和60°角,小强同学身旁没有量角器,也没有圆规、三角尺,他灵机一动,想到了折纸的办法:他拿出一张矩形纸片
,先对折使
与
重合,如图一,得到折痕
,把纸片展平,再一次折叠纸片
,使点
落在
上的
处,并使折痕经过点
,得到折痕
和线段
.
(1)请直接写出
的度数,并说明理由;
(2)在图一的线段
上取一点
,将
沿着直线
折叠,如图二,使得
点恰好落在线段
上,求
;
(3)若
为
边上一点,如图三,将
沿直线
折叠,
的对应点为
,延长
交
边于点
,延长
交
边于点
,连接
.
①若
,当
时,若存在唯一的点
,使得四边形
为平行四边形,求
的值;
②在①的条件下,若
为线段
上一动点,如图四,连接
,取线段
的中点
,连接
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/8/dc966f24-8ff2-417d-8670-e6f8bdae0cfc.png?resizew=175)
(1)请直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d76e136e7df3692ae6536fc70b6961a9.png)
(2)在图一的线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1028cdd34b2ec5e663dd1f8092a32a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48ad8115387158c8dda205d26968ba11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28df0b35b6afe90dcba33b09a4b9b13f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/8/8ec36c3e-4d2b-4248-adbb-853570f3befb.png?resizew=172)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a5e0a51c9e14fb246b0ba0b231c1e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/8/b3f6d92f-b8d9-4863-b6f5-1fb877d0ef77.png?resizew=160)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f6197e055a0bc8a2a0c1414026e6fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cc3dcc4325297dac77a92c0682a6cad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8412a577b2368392d634250d43c57f3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
②在①的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e4fa04825ac7d071968056322d88be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e4fa04825ac7d071968056322d88be.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/8/20dac818-63b8-481e-8185-afa70ca936de.png?resizew=160)
您最近一年使用:0次
2023-09-07更新
|
28次组卷
|
2卷引用:福建省宁德市第五中学2023-2024学年高一上学期学生学科素养测试数学试题
名校
6 . 如图,在平行四边形
中,
是
的中点,则下列四个结论:
①
;
②若
,
,则
;
③若
,则
;
④若
,则
与
全等.
其中正确的结论为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/7/4db5b0f4-68d3-459f-a868-ccf3c61118ee.png?resizew=179)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/049ba02a6816033ade98e679a59a3b24.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3796f1648a3d17b0e9ff860300a5ead6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f89deb952f57f4b3fa4887b098b7b91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3d1d3c51f36c9913364a8fc8c643530.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/594b800b89955d8d2e605cc7977bb75d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e2f1e7b232aa818163ce24a549ce1f.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b317b54f6072b74b42e27a534eddf28c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66a5c35b41bb1a8fa59998a6dcc791f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a37ba261860ddad9d11b2e8348a8f3.png)
其中正确的结论为( )
A.① | B.② | C.③ | D.④ |
您最近一年使用:0次
2023-09-07更新
|
24次组卷
|
2卷引用:福建省宁德市第五中学2023-2024学年高一上学期学生学科素养测试数学试题
名校
7 . 如图,将边长为2cm的正方形
沿其对角线
剪开,再把
沿着
方向平移,得到
,若两个三角形重叠部分的面积为
,则它移动的距离
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ee6e1d480ece7117e1f87ebf4bbeea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168487ff53e9fb74f786a7e6e78823e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6024fd4532f5f981deac4582c799a6ef.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/8/c854bb17-958d-424f-bb32-21c4e3aec8b2.png?resizew=258)
A.0.5cm | B.1cm | C.1.5cm | D.2cm |
您最近一年使用:0次
2023-09-07更新
|
26次组卷
|
3卷引用:福建省宁德市第五中学2023-2024学年高一上学期学生学科素养测试数学试题
8 . (1)化简
;
(2)已知复数的
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c10fab74d95dffceb78629d60c9abed2.png)
(2)已知复数的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b9740e713ac618b98aee2b8a148ed26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1245ed74a632317d3a0a106aa9d02eaf.png)
您最近一年使用:0次
2023-08-24更新
|
499次组卷
|
4卷引用:福建省宁德市博雅培文学校2023-2024学年高一下学期第一次月考数学试题
福建省宁德市博雅培文学校2023-2024学年高一下学期第一次月考数学试题海南省陵水黎族自治县陵水中学2022-2023学年高一下学期期中考试数学试题(已下线)第02讲 复数的四则运算-《知识解读·题型专练》(人教A版2019必修第二册)(已下线)第12章 复数 章末题型归纳总结-【帮课堂】(苏教版2019必修第二册)
解题方法
9 . 近年来,中国中小学生视力不良率持续上升,某课题研究团队猜测这与学生频繁使用电子产品有一定的关系.为验证猜测的合理性,该团队对一个班级展开问卷调查,调查数据如下表.
(1)能否有99%的把握认为学生近视与每天使用电子产品超过1小时有关系?
(2)以频率估计概率,从全校学生中随机选取1名学生进行座谈,已知该学生近视,求他每天使用电子产品不超过1小时的概率;
(3)以频率估计概率,从全校学生中随机抽取5名进行座谈,求恰好有2名学生近视的概率.
附:
,
.
每天使用电子产品的时间 | 视力情况 | |
近视 | 不近视 | |
超过1小时 | 35 | 5 |
不超过1小时 | 5 | 5 |
(2)以频率估计概率,从全校学生中随机选取1名学生进行座谈,已知该学生近视,求他每天使用电子产品不超过1小时的概率;
(3)以频率估计概率,从全校学生中随机抽取5名进行座谈,求恰好有2名学生近视的概率.
附:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e3821f70c08c5180e9b3086d3c9610f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a99edbd94ac32c0143951c081969bd4.png)
0.050 | 0.010 | 0.001 | |
k | 3.841 | 6.635 | 10.828 |
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解题方法
10 . 已知动点M的坐标满足方程
,直线
:
,过点
且方向向量为
的直线
与动点M的轨迹交于A,B两点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f4fc03beba369a4aa17fb039bb37aee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab466aedd6e176088d8dee7bc3e3aaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44400e1d547e3c88d31df752f235d624.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
A.动点M的轨迹是一条抛物线 |
B.直线![]() |
C.![]() |
D.![]() |
您最近一年使用:0次