(2012•黄州区模拟)设实数x,y满足约束条件2x−y+2≥08x−y−4≤0x≥0,y≥0
(2012•黄州区模拟)设实数x,y满足约束条件2x−y+2≥08x−y−4≤0x≥0,y≥0
(2012•浙江模拟)已知实数x,y满足约束条件2x−y≤0x−3y+5≥0y≥1
设变量x,y满足约束条件x−y≥0x+y≤1x+2y≥1
(2012•泉州模拟)设实数x、y满足约束条件2x+y≤10x−y≤2x≥3,则z=x+y的最小值为( )
(2012•安徽模拟)已知实数x,y满足x−2y+2≥0y≥|x|
设实数x,y满足约束条件x≥1且x≠2y≥1x+2y−5≤0,则z=x+y−1x−2的取值范围为( )
设实数x,y满足约束条件x-y+2≥0x+y-4≥02x-y-5≤0
设x,y满足约束条件x+y≤1y≤xy≥−2
设x,y满足约束条件x−y+2≥05x−y−10≤0x≥0y≥0
已知x,y满足约束条件x−y+5≥0x+y≥0x≤3,则z=x+2y的最小值为( )
设变量x,y满足约束条件x≥0x−y≥02x−y−2≤0
设变量x,y满足约束条件x+2y−5≤0x−y−2≤0x≥0