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Brut [27]
3 years ago
5

Can someone please help me

Mathematics
2 answers:
solong [7]3 years ago
5 0

Answer:

B

Step-by-step explanation:

its a right angle and one point is 40 as shown already so 90-40=50 hope this helps

Georgia [21]3 years ago
3 0

So you would take your 90° angle which is the box on the bottom right hand corner and add 40° which would equal 130° and then you would subtract 180° -130° and you would get 50°.

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6 0
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{x}^{4}+4{x}^{3}y+6{x}^{2}{y}^{2}+4x{y}^{3}+{y}^{4}x

​4

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​​ y

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Step-by-step explanation:

1 Use Square of Sum: {(a+b)}^{2}={a}^{2}+2ab+{b}^{2}(a+b)

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​​ )(x

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​​ +2xy+y

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{x}^{2}({x}^{2}+2xy+{y}^{2})+2xy({x}^{2}+2xy+{y}^{2})+{y}^{2}({x}^{2}+2xy+{y}^{2})x

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​​ )+y

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3 Expand by distributing terms.

{x}^{4}+2{x}^{3}y+{x}^{2}{y}^{2}+2xy({x}^{2}+2xy+{y}^{2})+{y}^{2}({x}^{2}+2xy+{y}^{2})x

​4

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​​ (x

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​​ +2xy+y

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​​ +2x

​3

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​​ y

​2

​​ +2xy

​3

​​ +y

​2

​​ (x

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​​ +2xy+y

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6 Collect like terms.

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7 Simplify.

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​4

​​ +4x

​3

​​ y+6x

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7 0
3 years ago
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