名校
1 . 设x,
,则“
”是“
”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95cccdff49c3efe6e7a7dbbf69db9319.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76c5d2f949a2e90f3429eaf9bf837e13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88d8a49a325a200c8aa103d7fd71ca3e.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充分必要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
2021-11-27更新
|
592次组卷
|
3卷引用:天津市区重点学校2022届高三下学期二模数学试题
2 . 咖啡馆配制两种饮料,甲种饮料分别用奶粉
、咖啡
、糖
.乙种饮料分别用奶粉
、咖啡
、糖
.已知每天使用原料限额为奶粉
、咖啡
、糖
.如果甲种饮料每杯能获利
元,乙种饮料每杯能获利
元.每天在原料的使用限额内
饮料能全部售出,每天应配制两种饮料各多少杯能获利最大?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/086a171fd6679584d47765801482bb74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0230b01981789d199b4b242a1950d127.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cb9020662f31056f2b1c64548efc4ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f555f4673b8e4ec706dee280d0988a18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/904495a9440742411b6ab76fc2a8d8c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2db397ab31a83cf844726bddf8e629a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6202d2bec026b378a668861dcd2eb00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5687efa433f062f780e193f9c8909e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c7b4af8471bd0d625b8038dfced166f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29ee5940db3eca3be22205d12bae26e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd7c304b64435d1697c1ea29efe08fb0.png)
![](https://img.xkw.com/dksih/QBM/2017/4/17/1667603182772224/1667961547620352/STEM/45902923602d41abba3d70b9a4083f9c.png?resizew=3)
您最近一年使用:0次
名校
3 . 设变量
满足约束条件
则目标函数
的最大值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b299e7996a5540b6376b35f8b9a4364.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75407f5349719aba26f58213459793eb.png)
A.![]() | B.1 | C.-1 | D.-3 |
您最近一年使用:0次
2017-02-19更新
|
582次组卷
|
7卷引用:【校级联考】天津市蓟州等部分区2019届高三上学期期末联考数学(理)试题