Answer:
here is the answer
A system of equations is a collection of two or more equations with a same set of unknowns.
Answer: (4,-4)
y=-4, x=4
Step-by-step explanation:
-4x=4y
4x-8y=12
-8y=-4x+12 Now I can substitute -4x for 4y
-8y=4y+12
-2y=y+12
-3y=12
y=-4
-4x=4y
-4x=4(-4)
x=4
Answer: Choice D) 85.5
Work Shown:
To get the midsegment, we add up the sides parallel to this midsegment, then we divide by 2.
LM = (AB + DC)/2
LM = (46 + 125)/2
LM = 171/2
LM = 85.5