NM equals 2x + 1, as stated in the question!
ac + cb = ab = 9 2x - 1 + 3x = 9 5x -1 = 9 So 5x = 10 Thereby x =2. Also ac = 3 and cb = 6
7
5.3 = 2x so x = 5.3/2 = 2.65
That depends on the value of CD and the perimeter of the quadrilateral out lined in the question
Commutativity.
ac + cb = ab = 9 2x - 1 + 3x = 9 5x -1 = 9 So 5x = 10 Thereby x =2. Also ac = 3 and cb = 6
7
5.3 = 2x so x = 5.3/2 = 2.65
yes because ab plus bc is ac
2ab
That depends on the value of CD and the perimeter of the quadrilateral out lined in the question
Commutativity.
The existence of the additive inverse (of ab).
No. A times B = AB
associative property
Area = 0.5*AB*BC*sin(ABC) = 0.5*(2x+1)*(x+2)*0.5 = 3 So, (2x+1)*(x+2) = 12 2x2 + 5x + 2 = 12 2x2 + 5x - 10 = 0 x = 1.31 (to 3 sf)
the midpoint of AB.