1 . 小丽想用一块面积为
的正方形纸片,沿着边的方向(即剪切的线与正方形的边平行)剪出一块面积为
的长方形纸片,使它的长宽之比为
,你认为她是否裁得出来?并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75529358d8479534bb097a53862cb682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10d7323a6d4eecc57a5871227da0daf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b1dcdac71e394e495d069f64e1f1ce9.png)
您最近一年使用:0次
2 . 解方程:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a04b4b6ab026b6eadd20a9b409abb2ff.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf053615227502bc4868c35ced07a8f.png)
您最近一年使用:0次
3 . 计算或解方程:
(1)计算:
;
(2)计算:
;
(3)解方程:
;
(4)解方程:
.
(1)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9361d1a6a489c3f7c5f6b03912877886.png)
(2)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd4ed8b12884d004f84c006e86489a37.png)
(3)解方程:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79532d2e1a1d9761be83fb771fefe04e.png)
(4)解方程:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b33668507ce0f27b65901052949d581.png)
您最近一年使用:0次
4 . 计算或解方程:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6cdb39c91fea4729b8739e116b964a7.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6df630cfac9bf0ef711ee4e77a0da9.png)
您最近一年使用:0次
2023-05-05更新
|
74次组卷
|
2卷引用:湖北省黄冈市红安县部分学校2022-2023学年七年级下学期期中数学试题
名校
5 . 计算:
(1)
;
(2)
;
(3)
;
(4)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb2b4bf947c52af02304d0aefdb72c32.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c89f4e39e336a06314042b8e78cd36.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/251e6a82accc02963ce8487a4e23b3dd.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/815084f24545c84aaa65bead7ef48b07.png)
您最近一年使用:0次
2023-05-05更新
|
86次组卷
|
2卷引用:湖北省黄冈师范学院附属武穴实验中学2022--2023学年七年级下学期期中考试数学试卷
6 . (1)计算:
①
;
②
;
(2)求下列各式中的x的值:
①
;
②
.
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f08ed779bf2045540301dacb07bf510.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/038eb224ff95e9bc0884c40d20ac6bba.png)
(2)求下列各式中的x的值:
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f33b0042f8adcb676df938af25199c1.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/391e6d6061cf012bc466a2f29198f312.png)
您最近一年使用:0次
7 . 求下列各式中
的值:
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a67b545dfd862702a2d26ccc88174865.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52783c6cace84ca17ce6230a8f24948d.png)
您最近一年使用:0次
2023-05-03更新
|
365次组卷
|
3卷引用:湖北省武汉市青山区2022-2023学年七年级下学期期中考试数学试卷题
8 . 求下列各式中的x的值
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00498a076488e610552891ebf69fd9a2.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00498a076488e610552891ebf69fd9a2.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ccf6f82cb711c0f061958fa4025af7e.png)
您最近一年使用:0次
9 . 求下列各式中
的值.
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6001774c274c7a224e9faeaf9bb21750.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6001774c274c7a224e9faeaf9bb21750.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7a3232a14bc6b27f7e4353ef0fbad69.png)
您最近一年使用:0次
10 . 求下列各式中x的值:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63cce1d5e7767f806f7736a1481185b1.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427f661f3a62563c598843185bc3db74.png)
您最近一年使用:0次