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kirill115 [55]
3 years ago
9

CAN SOMEONE PLZ HELP ME WITH THIS

Mathematics
1 answer:
pav-90 [236]3 years ago
8 0
Hello,

5 - 4 + 7x + 1
= 7x + 2

5 - 4 + 7x + 1 = 0
7x = - 2

x =  \frac{7}{-2}

I don't know what i have to do for the last one.

Hope this helps !

Photon


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What is the area of the trapezoid?
ExtremeBDS [4]
<h2>Answer:</h2>

42 square units

<h2>Step-by-step explanation:</h2>

For a better understanding, I add an EFGH Rectangle.

The area of EFGH Rectangle = p x l

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The area of EFGH Rectangle = 80cm²

The area of BHA Triangle = 1/2 x a x t

The area of BHA Triangle = 1/2 x a x t

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The area of AGD Triangle = 1/2 x a x t

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The area of CFD Triangle = 1/2 x a x t

The area of CFD Triangle = 1/2 x 2 x 6

The area of CFD Triangle = 6cm²

The area of BEC Triangle = 1/2 x a x t

The area of BEC Triangle = 1/2 x 8 x 4

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The area of BEC Triangle = 16cm²

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The area of the trapezoid = 42cm²

<h3>Conclusion :</h3>

The area of the trapezoid is <u>42 square units</u>

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2 years ago
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