解下列方程组
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea796e5c0bdb60832d8b520fed1389f2.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea796e5c0bdb60832d8b520fed1389f2.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9a5d55b73565543b479a00f92cebc95.png)
更新时间:2024-05-06 09:33:30
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相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】已知小明家与学校在一条笔直的公路旁,学校离小明家
.一天,小明从家出发去上学,匀速走了
时看到路旁有一辆共享单车,此时用了
、小明用
开锁后骑行
到达学校,给出的图象反映了这个过程中小明离家的距离
与离开家的时间
之间的对应关系.
![](https://img.xkw.com/dksih/QBM/2021/4/5/2695872974200832/2710752897138688/STEM/c14049d3-798c-43f4-8221-5e4494b5c385.png)
请根据相关信息,解答下列问题:
(1)填表:
(2)填空:
①小明骑车的速度为________
;
②当小明离家的距离为
时,他离开家的时间为________
;
(3)当
时,直接写出
关于
的函数解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57c52552c6e925e1a7d2bcd584ed6d8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36dc4d7d96fa275f32ff0be790e12ea5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c38eb02bd17fb4f4b8126389aeca0ea9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9504a819e9225ac8743c8c0809492370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/541b7e316b778f5fe7d443f8fde54776.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b51707400203cf8a006549a83821481.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4fe963f369369be8f2005981446cf04.png)
![](https://img.xkw.com/dksih/QBM/2021/4/5/2695872974200832/2710752897138688/STEM/c14049d3-798c-43f4-8221-5e4494b5c385.png)
请根据相关信息,解答下列问题:
(1)填表:
离开小明家的时间/![]() | 2 | 4 | 5 | 6 |
离小明家的距离/![]() | 160 | ________ | 400 | ________ |
①小明骑车的速度为________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54e7a156d2478fb85d69e409ed2e681e.png)
②当小明离家的距离为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c215cd009033f87f7dcb6a4dc2d84c26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e008ee8b0dc593ce21d8d4c87afef1c.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5493abd65c3b77b88b19dde06a75d9ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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解答题-问答题
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适中
(0.65)
【推荐2】解方程:(1)(x-1)2=9;(2)8(x+2)3=-27;(3)
;(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa36856aaeb28cb27ec2e39f23b974c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee6cb1726853ad51c71d9a3eeaa67e9.png)
您最近一年使用:0次