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Mathematics
Problem
The inequalities
x
+
y
≤
10
x + y \le 10
x
+
y
≤
10
,
x
+
2
y
≥
8
x + 2y \ge 8
x
+
2
y
≥
8
,
x
≥
0
x \ge 0
x
≥
0
,
y
≥
0
y \ge 0
y
≥
0
define a feasible region in the first quadrant. Which of the following points is a vertex of this region? a)
(
6
,
4
)
(6,4)
(
6
,
4
)
b)
(
4
,
2
)
(4,2)
(
4
,
2
)
c)
(
0
,
4
)
(0,4)
(
0
,
4
)
d)
(
4
,
0
)
(4,0)
(
4
,
0
)
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