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15-11-2019
Mathematics

contestada

DF is a midsegment
Solve for y
A. -3
B. 3
C. 1/2
D. 2

DF is a midsegment Solve for y A 3 B 3 C 12 D 2 class=

Respuesta :

19-11-2019

Answer:

B. 3

Step-by-step explanation:

If DF is a midsegment, then F is a midpoint of BC, so

BF = FC, thus

[tex]4y=6(y-1)[/tex]

Solve this equation:

[tex]4y=6y-6\\ \\4y-6y=-6\\ \\-2y=-6\\ \\2y =6\\ \\y=3[/tex]

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