Answer:
BC=20
AE= 18
<ABC= 114 degrees, <DAB=66 degrees
Step-by-step explanation:
To find DAB you subtract 180 from 114
Answer:

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Add up the corresponding elements
Row1,Column1: 6.1+(-7.2) = -1.1
Row1,Column2: 1.9+7.6 = 9.5
Row2,Column1: -7.5+1.8 = -5.7
Row2,Column2: 2.2+(-1.4) = 0.8
Row3,Column1: 3.8+2.3 = 6.1
Row3,Column2: -1.4+2.1 = 0.7
So that's why the answer is
Here is some answers
1. 2x+3y=1,470
-2x -2x
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3y=-2x+1,470
---- --------
3 3
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y=-2x+490
2. rise
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run
y=-2
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1
Find 490 and either go up 2 down 1 or down 2 up 1 either way you will get a straight line.
3. f(x)=2x+490
Don-t know how to explain this :(
I'm confused after this question
Hope this helped a little