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olchik [2.2K]
3 years ago
10

If BC = 15, BE = 6, DC = 12, and AD = 8, then segment DE is parallel to segment AB.

Mathematics
2 answers:
SSSSS [86.1K]3 years ago
4 0
Solution: if BC = 15 - 6 = 9

Use the converse of triangle proportionality theorem

AD/DC = 8/12 = 2/3
BE/EC = 6/9 = 2/3

Answer: yes, AD/DC =BE/EC = 2/3, so DB||AB
Elis [28]3 years ago
3 0
Do you have a picture? Your question isn’t making sense love
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Let's start with y = 4x + b (since 4 is the slope);

We need to find what number should be put instead of b;

Then, let's see what needs to be done;

Plug in the y and x values from the coordinate (22,12) into y=4x+b;

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ivann1987 [24]

The slope-point formula:

y-y_1=m(x-x_1)

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the answer is -3

hope it helps!


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Step-by-step explanation:

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