Answer:
DC = 2
Step-by-step explanation:
The wrong equation was used.
The right equation to use based on the midsegment theorem of a trapezoid is:
MN = ½(AB + DC)
MN = 8
AB = 14
Substitute
8 = ½(14 + DC)
Multiply both sides by 2
8*2 = ½(14 + DC)*2
2*8 = 14 + DC
16 = 14 + DC
16 - 14 = 14 + DC - 14
2 = DC
DC = 2
Because the left side of the equation is an absolute value, making it impossible to = to -1.
Answer:
8
Step-by-step explanation:
18-12
12-X
X=12*12/18
X=8mm
Answer:
Looks like <u>inverse property of addition </u>to me
