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In the diagram below of triangle BCD,

E is the midpoint of BD and F is the

midpoint of CD. If EF = -9x + 82,

and BC= 80 - 6x, what is the measure

of BC?

B

E

Answer:

BC=

D

Submit Answer

F

attempt 2 out of 100

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In the diagram below of triangle BCD E is the midpoint of BD and F is the midpoint of CD If EF 9x 82 and

Answer :

Answer:

808

Step-by-step explanation:

In this case, BC is 2EF so first we’ll solve for x so set them equal to each other so -9x+82=80-6x

then simple algebra leads us to 162=3x and x = 54

EF equals 404 so BC equals 808

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