为给同学们创造更好的读书条件,学校准备新建一个长度为L的读书长廊,并准备用若干块带有花纹和没有花纹的两种规格、大小相同的正方形地面砖搭配在一起,按如图所示的规律拼成图案铺满长廊,已知每个小正方形地面砖的边长均为0.6
.
(1)按图示规律,第一个图案的长度![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f163c96362ab8471539a19e45c2b50b.png)
___________
,第二个图案的长度![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f4da5516bb94fe1393773b602500ca8.png)
___________
.
(2)请用代数式表示带有花纹的地面砖块数
与走廊的长度
之间的关系![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfc764c36180bc8e544a087f61de925f.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15e00f40396e914d1d9955bd7785f1f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/26/9db88957-810f-41e8-9641-42c1199fa540.png?resizew=553)
(1)按图示规律,第一个图案的长度
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f163c96362ab8471539a19e45c2b50b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15e00f40396e914d1d9955bd7785f1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f4da5516bb94fe1393773b602500ca8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15e00f40396e914d1d9955bd7785f1f.png)
(2)请用代数式表示带有花纹的地面砖块数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5a2d3cd8e283ae9d04bee5ab2e0895b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfc764c36180bc8e544a087f61de925f.png)
更新时间:2023-07-17 18:57:36
|
相似题推荐
填空题
|
适中
(0.65)
【推荐1】在无限大的正方形网格中按规律涂成的阴影如图所示,第1、2、3个图中阴影部分小正方形的个数分别为5个、9个、15个,根据此规律,则第20个图中阴影部分小正方形的个数是_____ .
![](https://img.xkw.com/dksih/QBM/2021/4/10/2696772644175872/2702290311241728/STEM/ee0545a3-96bd-4520-baef-6044e89dfa0b.png)
您最近一年使用:0次
填空题
|
适中
(0.65)
名校
【推荐2】如图,由等圆组成的一组图中,第
个图由
个圆组成,第
个图由
个圆组成,第
个图由
个圆组成,……,按照这样的规律排列下去,则第
个图形由______ 个圆组成,第
个图形由_____ 个圆组成.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d0b71b8d2c183154221f717ce09077b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://img.xkw.com/dksih/QBM/2020/3/14/2419379405815808/2420045649977344/STEM/b9f054280f904ff0ad973ba8792c8926.png?resizew=365)
您最近一年使用:0次
填空题
|
适中
(0.65)
【推荐1】如图,已知四边形ABCD的顶点为A(1,2),B(﹣1,2),C,(﹣1,﹣2),D(1,﹣2),点M和点N同时从E点出发,沿四边形的边做环绕匀速运动,M点以1单位/s的速度做逆时针运动,N点以2单位/s的速度做顺时针运动,则点M和点N第2017次相遇时的坐标为_____ .
![](https://img.xkw.com/dksih/QBM/2020/6/11/2482105782427648/2484528476258304/STEM/f1b985c6-5b39-456f-9c1c-621911812280.png?resizew=305)
您最近一年使用:0次
填空题
|
适中
(0.65)
【推荐2】如图,将形状和大小完全相同的:“
”和线段按照一定规律摆成下列图形,第1幅图形中“
”的个数为
,第2幅图形中“
”的个数为
,第3幅图形中“
”的个数为
以此类推,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aef9e43b7640b9f4fc87d97304ad6dd.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55aed0debf978bd29fb2aa141fd72760.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55aed0debf978bd29fb2aa141fd72760.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55aed0debf978bd29fb2aa141fd72760.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55aed0debf978bd29fb2aa141fd72760.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffbb5a620db47c244eab7bb72fe85455.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aef9e43b7640b9f4fc87d97304ad6dd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/23/86ac8866-f9d2-456e-a2d5-0558d9454659.png?resizew=399)
您最近一年使用:0次