1 . 为打造旅游休闲城市,某村庄为吸引游客,沿绿道旁的母亲河边打造喷水景观(如图1).为保持绿道地面干燥,水柱呈抛物线状喷入母亲河中.图2是其截面图,已知绿道路面宽
米,河道坝高
米,坝面AB的坡比为
(其中
),当水柱离喷水口O处水平距离为2米时,离地平面距离的最大值为3米.
(1)求水柱所在抛物线的解析式;
(2)出于安全考虑,在河道的坝边A处安装护栏,若护栏高度为1.2米,判断水柱能否喷射到护栏上,说明理由;
(3)河中常年有水,但一年中河水离地平面的距离会随着天气的变化而变化,水柱落入水中能荡起美丽的水花,从美观角度考虑,水柱落水点要在水面上;
①河水离地平面
距离为多少时,刚好使水柱落在坝面截线
与水面截线的交点处?
②为保证水柱的落水点始终在水面上,决定安装可上下伸缩的喷水口,设坝中水面离地平面距离为h米,喷水口离地平面的最小高度m随着h的变化而变化,直接写出m与h的关系式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d257ee9c4cc6734d6133176abfc1404.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edc5df62e8ac9c74a46462519b95479a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9bbf35fe2349c32441815e225ef129f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cff3af2c91247039ef53ae46a88f0109.png)
(1)求水柱所在抛物线的解析式;
(2)出于安全考虑,在河道的坝边A处安装护栏,若护栏高度为1.2米,判断水柱能否喷射到护栏上,说明理由;
(3)河中常年有水,但一年中河水离地平面的距离会随着天气的变化而变化,水柱落入水中能荡起美丽的水花,从美观角度考虑,水柱落水点要在水面上;
①河水离地平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
②为保证水柱的落水点始终在水面上,决定安装可上下伸缩的喷水口,设坝中水面离地平面距离为h米,喷水口离地平面的最小高度m随着h的变化而变化,直接写出m与h的关系式.
您最近一年使用:0次
2 . 如图,在一个建筑物两侧搭两个长度相同的滑梯(即
),设计要求左、右两边的滑梯
,
的坡度分别为
和
.测得
米,
米.
(2)试猜想两个滑梯
,
的位置关系,并证明;
(3)小亮(看成点)
从点
沿滑梯
下滑,请直接 写出他与
处距离的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7da8fe8f5f8a3f17561d70652ad1172a.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/37d65e051e943ab28fa57aee2fb57994.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbe7344afd6e0ef8760c57bfaad647b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b515965c22d2950b592c096c6e3bdfd4.png)
(2)试猜想两个滑梯
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
(3)小亮(看成点)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
7日内更新
|
47次组卷
|
3卷引用:2024年河北省张家口市九年级中考三模数学试题
名校
3 . 小明在一段斜坡
上进行跑步训练.在训练过程中,始终有一架无人机在小明正上方随他一起运动,无人机速度为
,距水平地面的高度总为
(在直线
上运动).现就小明训练中部分路段作出如图函数图象:已知
点坐标是
,斜坡
的坡角为
.
上的跑步速度.
(2)求
段
关于
的函数解析式;
(3)若小明沿
方向运动,求无人机与小明之间距离不超过
的时长.(参考数据:
,
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36f037cf514f9f12ec2f7ad6eb409856.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbae9b64d5a3a42931dc41c32fc4bb75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b749f9acb5f0de709a1709bbdd42614.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0c6efd24d7b6da440b81b75166bbf80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bce6c3d6874f9c06e693b64b2b40d610.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbe53cbaa36cecf802efc9e81e9937ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(3)若小明沿
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75b5e1433d7c2ad6a5b2de8a557a43d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167e6e41ac221847824a72e964f340f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0af7b2d62b94466387c8a15ab0b7350a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d57ac09088f0dbed7e217d2a9bc037.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7730adb728a84231d6a03c6d88779504.png)
您最近一年使用:0次
4 . 嘉淇是校物理科技社团的成员,如图,他在研究平抛运动,平台
与
轴(水平)的距离为5分米,且
分米,小球(看成点)在
方向获得速度
分米/秒后,从
处向右下飞向滑道,点
是下落路线的某位置.忽略空气阻力,实验表明:
,
的竖直距离
(分米)与飞出时间
(秒)的平方成正比,且
时
,
,
的水平距离是
分米.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/3/d0c86deb-5e90-46b9-a323-9287f35be05b.png?resizew=458)
(1)用
表示
;
(2)设
,用
表示点
的横坐标
和纵坐标
,并求
与
的关系式(不写
的取值范围);
(3)有一坡角为
的斜面,斜面
的长为3分米,
,
在
轴上,且
.
①当
时,设小球落在
轴上的点
处,求
的长;
②如果小球能落到斜面
上,求
的取值范围.(
取
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc13a607ac0c7f76d252d7cb1bb040fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2a51944c720568f35d443589dfc1aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5c28e1dfe708fc6e8595dc4f201d3c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f39e04470c92ba6bc5839b0e852170b8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/3/d0c86deb-5e90-46b9-a323-9287f35be05b.png?resizew=458)
(1)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0842eebbf8ebf2019c6c4ce2db995ecd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(3)有一坡角为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8141d00b74eb4c50bf861e6ff0edf137.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb314112f6e0e3a8c56d184560431786.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0842eebbf8ebf2019c6c4ce2db995ecd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f53330c107f8245290a5a42c3d356acd.png)
②如果小球能落到斜面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc13a607ac0c7f76d252d7cb1bb040fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c01f1e6011e891abd4e978de5b2df68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2a698891d42c70b597f0da4f215f09.png)
您最近一年使用:0次
5 . 图是某水库大坝的横截面,背水坡
,且坡度为
.为了对水库大坝进行升级加固,降低背水坡的倾斜程度,设计人员准备把背水坡的坡度改为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/9/6c02bb1a-f3f3-4eb3-9e72-d9f26f6610cb.png?resizew=213)
(1)求背水坡
的坡角及坝高
的长;
(2)求背水坡新起点A与原起点B之间的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e411e55527c668a22a1c12c9510a632f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf1c295fd10f4dcc21955ce39560b5c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db20862b954cd1886f4765657a46d91c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/9/6c02bb1a-f3f3-4eb3-9e72-d9f26f6610cb.png?resizew=213)
(1)求背水坡
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(2)求背水坡新起点A与原起点B之间的距离.
您最近一年使用:0次
6 . 如图,河堤横断面迎水坡
的坡比是
,则
的值是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/26/8d254ed9-f175-4f52-b694-270e16d8c88f.png?resizew=165)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/526ddee4ed97b917d9e4cc4542c72a37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b01adc561735ff5be9bb97266918f2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/26/8d254ed9-f175-4f52-b694-270e16d8c88f.png?resizew=165)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-01-26更新
|
74次组卷
|
2卷引用:河北省邯郸市邯郸冀南新区2023-2024学年九年级上学期期末数学试题
7 . 如图,在一个坡角为
的斜坡上有一棵树
.当太阳光
与水平线成
角时,该树在斜坡上的树影恰好为线段
,
米.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/21/026e700f-1801-465d-9bf0-3a7973ab4d49.png?resizew=106)
(1)
_____,
______
(2)求树根到地面的距离
的长度.
(3)求树
的高度.(结果保留一位小数,参考数据:
,
,
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16aa0b9869db50a9ab48cc32925d8e96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/21/026e700f-1801-465d-9bf0-3a7973ab4d49.png?resizew=106)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/033968c7f033a066499e75696a7bae5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41db498f025052df2dbb1e50ab672675.png)
(2)求树根到地面的距离
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
(3)求树
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8a7ff6bb8000946da9599d7d903ac9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56caebecdeeba83609251548f32c9d0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2646ebc90a07704dffff326ec4dbea9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c91b9059590cdb85810fe8292418db8.png)
您最近一年使用:0次
8 . 如图,楼房
后有一假山
,
的坡度为
,测得
与
的距离为
米,山坡坡面上
点处有一休息亭,与山脚
的距离
米,小丽从楼房房顶
处测得
的俯角为
.
(1)求点
到水平地面的距离;
(2)求楼房
的高.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2450156c6f081864f1efcf10af156e47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51ed533272ac9d01f1ce3e741b034d4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/052d471177df219bfec13448f539f19c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/20/e764e659-dfdc-49c3-985e-8fa454e081fc.png?resizew=204)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)求楼房
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2023-11-17更新
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491次组卷
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4卷引用:河北省秦皇岛市昌黎县2023-2024学年九年级上学期期末数学试题
名校
9 . 如图是一座人行天桥的示意图,已知天桥的高度
米,坡面
的倾斜角
,距
点8米处有一建筑物
,为了方便行人推自行车过天桥,市政府决定降低坡面
的坡度,把倾斜角由45°减至30°,即使得新坡面
的倾斜角为
.
的长度;
(2)试求新坡面底部点
到建筑物
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eca7e1a727ba332984ad857b3d25344d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dc7f54acef4e40aad465ffe5f8b4b22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d567bdeba9b8e17d0911f594e141eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d65639672f444b3d4dc6fc4f357ddbd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)试求新坡面底部点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
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2023-10-09更新
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240次组卷
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6卷引用:2024年河北省沧州市沧州中考一模数学试题
2024年河北省沧州市沧州中考一模数学试题(已下线)第03讲 三角函数的实际应用(知识解读+真题演练+课后巩固)-2023-2024学年九年级数学下册《知识解读·题型专练》(浙教版)(已下线)第02讲 解直角三角形-【帮课堂】2023-2024学年九年级数学下册同步学与练(人教版)黑龙江省哈尔滨市南岗区萧红中学校2023-2024学年九年级上学期10月月考数学试题山东省淄博市高青县2023-2024学年九年级上学期期中数学试题(已下线)第03讲 三角函数的实际应用(知识解读+真题演练+课后巩固)-2023-2024学年九年级数学下册《知识解读·题型专练》(人教版)
名校
10 . 某街心公园设置灌溉喷枪为绿色观叶植物进行浇水,喷枪喷出的水流路径可以看作是抛物线的一部分,喷枪可通过调节喷水杆的高度改变水柱落地点的位置,喷头上下移动时,抛物线型水流随之竖直上下平移,以地面为
轴,喷水口所在竖直方向为
轴建立直角坐标系,设水流路径上的某一位置与喷水口的水平距离为
,距地面的高度为
,
与
的部分对应数值汇总如下表.
(2)在图1的平面直角坐标系中,根据已知数据画出该函数在网格中的图象(包括边界);
(3)如图2,在地面上距离喷水杆
处有一段斜坡
长
,坡角为
,若要使喷出的水正好落在
处,那么须将
处的喷水口向上竖直提高多少?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3bde6ef2ee5b749b4d48d706543cdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97e084ae38a5dc1db3c411b5fd3787b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
… | 1 | 2 | 3 | 4 | 5 | … | |
… | 1.875 | 2 | 1.875 | 1.5 | 0.875 | … |
(2)在图1的平面直角坐标系中,根据已知数据画出该函数在网格中的图象(包括边界);
(3)如图2,在地面上距离喷水杆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f71a41641aa0d0e45a3c03d3d2c1196b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b508dbaa1136fe5aa08e3f1563008fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2023-05-17更新
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299次组卷
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5卷引用:河北省邢台市信都区邢台市第五中学2023-2024学年九年级下学期月考数学试题