11-12高一上·福建泉州·期末
1 . 按复利计算,存入一笔
万元的三年定期存款,年利率为
,则
年后支取可获得利息为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4763092363b22903df0a1119b68bfdac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2 . 我国东部某风景区内住着一个少数民族部落,该部落拟投资
万元用于修复和加强民俗文化基础设施.据测算,修复好部落民俗文化基础设施后,任何一个月(每月均按
天计算)中第
天的游客人数
近似满足
(单位:千人),第
天游客人均消费金额
近似满足
(单位:元).
(1)求该部落第
天的日旅游收入
(单位:千元,
,
)的表达式;
(2)若以一个月中最低日旅游收入金额的
%作为每一天应回收的投资成本,试问该部落至少经过几年就可以收回全部投资成本.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d69c0fc5595aadf8e59662c20c515b58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b53c7539ed297ea63b9ace6f5cc58ca8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72aeaea872dc640f03c658335d88c5a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5c55ba8b5553d6b168ebd61f8e7ba7c.png)
(1)求该部落第
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c59e7c7a84a4bdb959e95536d0404ceb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02636678d45f82d8898b7c73a25422d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7035ce63c77b441f544fed0b4975d3bb.png)
(2)若以一个月中最低日旅游收入金额的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
您最近一年使用:0次