1 . 下列结论正确的是( )
A.若![]() ![]() |
B.直线:![]() ![]() ![]() ![]() |
C.直线![]() ![]() ![]() |
D.若函数![]() ![]() ![]() |
您最近一年使用:0次
2 . M是一个动点,
与直线
垂直,垂足
位于第一象限,
与直线
垂直,垂足
位于第四象限,且
.
(1)求动点M的轨迹方程E;
(2)设
,
,过点
的直线l与曲线E交于A,B两点(点A在x轴上方),P为直线
,
的交点,当点P的纵坐标为
时,求直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/123a6eaa56d0b9bd254c6d1361d9114c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25869dd14f3e7412beda491bb83f982d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b104090ea2ac34be58a76a4e0e95cb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447f670d11edf53bbba22d15e4b3a50f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/660087dd8c9f65f5a525c9fd11971816.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df1d9b712b639c8b6809c9f3ae03706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa12d19c4e734bd5b3011b2e8623b26c.png)
(1)求动点M的轨迹方程E;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e788c747c01bb744d887029acaefee87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51b81d7e0ae6cd2a96fa75ede38b5798.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c3a2f5b0702ea9fbb9dc8904579737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a696a182fff038a86b2bbe8ca099442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/668438e15423368cd744445e824d18a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61114b59283cd2ff3da1e7909a71603a.png)
您最近一年使用:0次
解题方法
3 . 2014年,几个生产袋装螺蛳粉的小作坊在柳州悄然出现,打破了长期以来螺蛳粉只能“现煮堂食”的局面,政府通过引导,让相关产业逐步走向标准化,2018年8月20日,“柳州螺蛳粉”获得国家地理标志商标,2020年新冠肺炎疫情期间,柳州螺蛳粉逆势而上,成为全国热销产品,迅速走红.2022年,柳州螺蛳粉全产业链销售收入600.7亿元、增长19.8%,其中预包装柳州螺蛳粉销售收入182亿元、增长19.6%,年寄递量达到1.1亿件,今年某平台网红委托某工厂代加工袋装螺蛳粉,生产该款产品每月固定成本为4万元,每生产
万袋,需另投入成本
万元.当产量不足6万袋时,
;当产量不小于6万袋时,
.若该产品工厂的供货价为6元/袋,根据平台网流量,该款产品可以全部销售完.
(1)求工厂生产该款产品每月所获利润
(万元)关于产量
(万袋)的函数关系式;
(2)当月产量为多少万袋时,工厂生产该款产品每月所获利润最大,为多少万元?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bde66f0ef8ea3ac6d6ac91a93ba69ae5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3713556d2351b9901925d2811009719e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d084b9b9aac1fc4ae33c6af40f15a793.png)
(1)求工厂生产该款产品每月所获利润
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)当月产量为多少万袋时,工厂生产该款产品每月所获利润最大,为多少万元?
您最近一年使用:0次
名校
解题方法
4 . 某学校举办运动会,径赛类共设100米、200米、400米、800米、1500米5个项目,田赛类共设铅球、跳高、跳远、三级跳远4个项目.现甲、乙两名同学均选择一个径赛类项目和一个田赛类项目参赛,则甲、乙的参赛项目有且只有一个相同的方法种数等于( )
A.70 | B.140 | C.252 | D.504 |
您最近一年使用:0次
2024-01-18更新
|
1784次组卷
|
3卷引用:广西柳州高级中学2024届高三下学期5月适应性演练数学试卷
名校
5 . 如图,若直线
:
与坐标轴交于
,
两点,与直线
:
交于点
,直线
交
轴于点
,交
轴于点
.则下列结论正确的是( )
![](https://img.xkw.com/dksih/QBM/2023/12/15/3389849850945536/3390583730438144/STEM/d929c674897c4c8ab443d5dd76bcce68.png?resizew=184)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed06ccefffc165f9c77250cd28301d8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383f12cb70ca55eba4ff012771dbfa9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4776e87dd96658bb5ffe1b09cb98c03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2405abb203e41e598ce6c414261be483.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e432dfd64eabfa559d863a48c34519ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/2023/12/15/3389849850945536/3390583730438144/STEM/d929c674897c4c8ab443d5dd76bcce68.png?resizew=184)
A.![]() ![]() | B.![]() ![]() |
C.![]() | D.当![]() ![]() |
您最近一年使用:0次
名校
6 . 下列说法正确的是( )
A.方程![]() ![]() |
B.方程![]() |
C.以![]() ![]() |
D.一元二次方程![]() ![]() |
您最近一年使用:0次
名校
7 . 我国是最早了解勾股定理的国家之一.据《周髀算经》记载,勾股定理的公式与证明是在商代由商高发现的,故又称之为“商高定理”;三国时代的蒋铭祖对《蒋铭祖算经》内的勾股定理作出了详细注释,并给出了另外一个证明,下面四幅图中,能证明勾股定理的是( )
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
8 . 如图(1),抛物线
交
轴于点
,交
轴于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/a9555f43-8dba-40cc-89c3-c069a4d41d4b.png?resizew=291)
(1)求
和
的值;
(2)已知点
,
是抛物线
上的两个点,且
,
,求此抛物线的顶点到
的距离;
(3)如图(2),连接
,点
是抛物线
在线段
上方部分上的一个动点,连接
,交线段
于点
,设
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d88bbd34102b55fa928e8ff83f0d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/823099d18b79aad79a43d30704291aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/396b08e4848f688a5fff1b804cf3f205.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/a9555f43-8dba-40cc-89c3-c069a4d41d4b.png?resizew=291)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2905e6464cf8cc7fa8efb1e157a5080.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c087d509511a623d6093d3ed1e9e15c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d88bbd34102b55fa928e8ff83f0d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55319960e4da22e3c756e035a6da7e57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1292c47f62023b747f1a4bd615c75284.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
(3)如图(2),连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d88bbd34102b55fa928e8ff83f0d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85528fcc713f20c3f9f58a73e66a076b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
9 . 如图,在正方形纸片
中,对角线
,
交于点
,折叠正方形纸片
,使
落在
上,点
恰好与
上的点
重合,展开后,折痕
分别交
,
于点
,
,连接
,下列结论正确的是( ).
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/ceadf21b-027f-449b-8007-378363583293.png?resizew=144)
![](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/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](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/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0e57a13c665af88f326c9890072bf73.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/ceadf21b-027f-449b-8007-378363583293.png?resizew=144)
A.![]() | B.![]() |
C.![]() | D.四边形![]() |
您最近一年使用:0次
名校
10 . 如图,在正方形
中,
为对角线
的中点,
为正方形内一点,连接
,
,连接
并延长,与
的平分线交于点
,连接
,若
,则
的长度为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/8536c954-c284-4bc2-9c12-24d5052d4f6b.png?resizew=123)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a26c2c53046cbfe83f84f5393373589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cfc2771aa0d5b97d2297f8a26a6f6b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cad4595d5352b2884568a59d8d766a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56387ff53874620addcb0b91a605a309.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cad4595d5352b2884568a59d8d766a4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/8536c954-c284-4bc2-9c12-24d5052d4f6b.png?resizew=123)
A.2 | B.![]() | C.1 | D.![]() |
您最近一年使用:0次