
Length of the room is 5 m and width is 5 + 2 = 7 m.
Hope this helps.
r3t40
D: -2/3
That's your answer...
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The horizontal line has equation
. The line is solid, and everything below it is shaded, which translates to the inequality
. (so not B nor D)
The dashed line must have equation
. Because it's dashed, the inequality is strict. Pick any point in the shaded region, (0, 0) for instance, and compare both sides of this equation. (0, 0) means both
and
, so on the left side we have 0, and on the right we have -1. 0 > -1, so the inequality must be
.
This means the answer is A.
1,187,888,284 hope this helped (: