设实数x,y满足不等式组3y-x≥0,y+2x+a≥0,y-2x-2≤0,若x²+y²的最小值为5,则a的取值为?

不等式：设实数x,y满足3 设实数x,y满足不等式|x|+|y| 设实数x,y满足不等式组x+y≤1,y-x≤1,y≥0, 则x/(y+1)的取值范围...? 设实数x、y满足不等式组1≤x+y≤4和y+2≥|2x-3|,试求(x,y)所在的平面区域 设Z=x+y,其中实数x,y满足不等式x+2y>=0,x-y 若实数x,y满足不等式组｛x+y≥2 ｛2x-y≤4 ｛x-y≥0 ,则2x+3y的最小值是? 设实数x,y满足不等式组3y-x≥0,y+2x+a≥0,y-2x-2≤0,若x²+y²的最小值为5,则a的取值为? 若实数x,y满足不等式y 设实数x,y满足不等式组{x+2y-5>0 2x+y-7>0 x>=0 y>=0} ,且x,y为整数,则3x+4y的最小值是? 设实数x,y满足不等式组x y−11≤0,3x−y 3≤0,x≥0,则z=2x y的最大值为 若实数x,y满足不等式组x>=0 ,y>=0,x+2y 已知实数x,y满足不等式组：2x-y=0,x+2y 若实数xy满足不等式组x-2y≥0,x+y-3≥0,x-y-3≤0,则2x-y的最小值为? 若实数xy满足不等式组x-2y≥0,x+y-3≥0,x-y-3≤0,则2x-y的最小值 设X+Y=K,且X,Y满足不等式组 X-3Y 1.设x,y满足2x+y-4≥0,x-y-1≥0,x-2y-2≤0,则z=x+y有无最大与最小值?是多少?2.实数x,y满足不等式组y≥0,x-y≥0,2x-y-2≥0,则w=y/x的取值范围? 设实数x,y满足0 设实数x,y满足3