13.3cm rounded to the nearest 10th
Coplanar lines are line witch lie on the same lie on the same plane. two parallel lines or two intersecting lines always lie in a plane. Thus, two line are coplanar, if and only if they are either parallel or intersecting. lines in three dimensional space are coplanar, only if they are not skewed lines.
I'm not sure what you mean, but I think the answer is 3/6
2x - 1 > 7 ; Start
2x > 8 ; Add 1 to each side of the inequality
x > 4 ; Divide both sides by 2
So, x have to be less than 4 in order to be in the solution set.
