![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00879cffccc124857ca755a8c345e45f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5e1725516933bb441200c903bfa1ef3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7977f863078c2d53a6c74b1c341d2ba5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d6effbbf8148f8f7cedfce8a1e62a43.png)
(1)写出月利润
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)求该工厂在生产这种特殊产品中所获得的月利润最大值(万元)及此时的月生产量(万件)
![](https://img.xkw.com/dksih/QBM/2012/11/16/1571064457003008/1571064462581760/STEM/19060649befd40049f6187ef6624811c.png?resizew=13)
![](https://img.xkw.com/dksih/QBM/2012/11/16/1571064457003008/1571064462581760/STEM/62cc50be891a4d0db785e72209d2da3b.png?resizew=84)
![](https://img.xkw.com/dksih/QBM/2012/11/16/1571064457003008/1571064462581760/STEM/22dd4b35cf804420836851165225ffa3.png?resizew=53)
![](https://img.xkw.com/dksih/QBM/2012/11/16/1571064457003008/1571064462581760/STEM/f501ba8f42b34330b78b96f42a025ac9.png?resizew=47)
(Ⅰ)将该产品的利润
![](https://img.xkw.com/dksih/QBM/2012/11/16/1571064457003008/1571064462581760/STEM/2feb8728eabc44848bb14d20c9981ef9.png?resizew=15)
![](https://img.xkw.com/dksih/QBM/2012/11/16/1571064457003008/1571064462581760/STEM/19060649befd40049f6187ef6624811c.png?resizew=13)
(Ⅱ)促销费用投入多少万元时,厂家的利润最大.
3 . 某工厂生产某种产品,已知该产品的月生产量与每吨产品的价格
元
之间的关系式为
,且生产
产品的成本为
元
,则该厂每月生产
产品才能使利润达到最大.
利润
收入
成本
月份代码 | 1 | 2 | 3 | 4 | 5 |
碳酸锂价格 | 0.5 | 0.6 | 1 | 1.5 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1de56ab49dd75e91956fadbcd5f71ea5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0977ffbec4a40a135c354471bba9b612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09ae075d1b7d2128aa886666ea850911.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
5 . 某超市计划按月订购一种酸奶,每天进货量相同,进货成本每瓶4元,售价每瓶6元,未售出的酸奶降价处理,以每瓶2元的价格当天全部处理完.根据往年销售经验,每天需求量与当天最高气温(单位:℃)有关.如果最高气温不低于25,需求量为500瓶;如果最高气温位于区间[20,25),需求量为300瓶;如果最高气温低于20,需求量为200瓶.为了确定六月份的订购计划,统计了前三年六月份各天的最高气温数据,得下面的频数分布表:
最高气温 | [10,15) | [15,20) | [20,25) | [25,30) | [30,35) | [35,40) |
天数 | 2 | 16 | 36 | 25 | 7 | 4 |
以最高气温位于各区间的频率估计最高气温位于该区间的概率.
(1)求六月份这种酸奶一天的需求量不超过300瓶的概率;
(2)设六月份一天销售这种酸奶的利润为Y(单位:元),当六月份这种酸奶一天的进货量为450瓶时,写出Y的所有可能值,并估计Y大于零的概率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b397de77c76901a22b97520f8a092b89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
A.![]() | B.![]() | C.![]() | D.![]() |
(1)设从2016年起的第n年(以2016年为第一年),该企业不进行技术改造的年纯利润为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
(2)设从2016年起的第n年(以2016年为第一年),该企业不进行技术改造的累计纯利润为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f5c583c98a1fd516c6ceaa60b55dec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f5c583c98a1fd516c6ceaa60b55dec.png)
(3)依上述预测,从2016年起该企业至少经过多少年,进行技术改造的累计纯利润将超过不进行技术改造的累计纯利润?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://img.xkw.com/dksih/QBM/2017/3/7/1638672517267456/1641322065969152/STEM/a33a80da8e2f4415bf41425799b7c7cf.png?resizew=271)
(1)设该企业每天生产甲、乙两种产品分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
(2)如果生产1吨甲、乙产品可获利润分别为3万元、4万元,试求该企业每天可获得的最大利润.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc57d61c16327c93a6e5341b708c322e.png)
问:(1)要使平均成本最低,应生产多少件产品?
(2)若产品以每件500元售出,要使利润最大,应生产多少件产品?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6ea0742f2ba815a3227e609f963e8bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/579743813856e2a9183f5ec6eaaefbb2.png)
(1)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1164f993eb1f013b06ae02fe07de4140.png)
(2)实施哪种方案,两年后柑桔产量超过灾前产量的概率更大?
(3)不管哪种方案,如果实施两年后柑桔产量达不到灾前产量,预计可带来效益10万元;两年后柑桔产量恰好达到灾前产量,预计可带来效益15万元;柑桔产量超过灾前产量,预计可带来效益20万元;问实施哪种方案所带来的平均效益更大?