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kumpel [21]
3 years ago
10

Parallelogram or not ?

Mathematics
1 answer:
Zielflug [23.3K]3 years ago
3 0

Answer:

I think so

Step-by-step explanation:

here's here's the definition of a parallelogram

"a four-sided plane rectilinear figure with opposite sides parallel."

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Answer:

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Step-by-step explanation:

5 - 3(-2) + 1-3

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Can someone help me with this<br> 2x+4y+3z=6<br> x-2y+z=-5<br> -x-3y-2z=-7<br> solve for x,y,z
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Answer:

x = -7 2/3, y = 1 1/3 and z = 5 1/3.

Step-by-step explanation:

2x+4y+3z=6    .....  1

x-2y+z=-5        ...... 2

-x-3y-2z=-7      .......3

Add equations 2 and 3 to eliminate x:

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Multiply equation 2 by - 2:

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Add this to equation 1:

8y + z = 16   ........ 5

Now add equation 4 to equation 5:

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Now find z by substituting for y in equation 4:

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z = 12 - 20/3

z = 36/3 - 20/3 = 16/3 = 5 1/3.

Finally, we find x by substituting for y and z in equation 1:

2x + 4*4/3 + 3*16/3 = 6

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2x =  18/3 - 16/3 - 48/3 = -46/3

x = 23/3 =  7 2/3.

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