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解题方法
1 . 某医院需要建造隔离病房和药物仓库,已知建造隔离病房的所有费用
(万元)和病房与药物仓库的离
(千米)的关系为:
.若距离为
千米时,隔离病房建造费用为
万元,为了方便,隔离病房与药物仓库之间还需修建一条道路,已知购置修路设备需
万元,铺设路面每千米成本为
万元,设
为建造病房与修路费用之和.
(1)求
的表达式:
(2)当隔离病房与药物仓库距离多远时,可使得总费用
最小?并求出最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080b8b104df54a3f2638d67bac537f98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a17161b28b6ad8f57abc5b11e1b6c671.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b837fd9c52f60bfb3b6852733abc790.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(2)当隔离病房与药物仓库距离多远时,可使得总费用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
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2022-10-14更新
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6卷引用:重庆市辅仁中学校2022-2023学年高一上学期期中数学试题