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Harlamova29_29 [7]
2 years ago
6

The polynomial −2x3 − x2 + 13x in the last line is the result of

Mathematics
1 answer:
lions [1.4K]2 years ago
8 0
-x(2x^2 + x -13)

Hope this helps!! :D
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3 years ago
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The perimeters of the square and the triangle shown below are equal. What is the value of x?
Rudiy27
Perimeter is the sum of all the sides. So we can set up an equation:

\sf 3x+1+3x+1+3x+1+3x+1=2x+8+x+8+4x+2

Now solve for 'x', combine like terms:

When it comes to terms with variables it's just like normal addition but we keep the variable:

\sf 3x+3x+3x+3x=12x
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So we have:

\sf 12x+1+1+1+1=7x+8+8+2

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\boxed{\sf x=2.8}
8 0
3 years ago
Which of the following statements demonstrates unit rate?
Ber [7]
The answer would be B.

Unit rate is something per time unit or other unit.

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4 0
2 years ago
Plz help me solve this. and any song requests
LuckyWell [14K]

Answer:

66

Step-by-step explanation:

12(8)-9(8-6)-(12-9)(8)÷2=96-18-12      or   6(9)+(12-9)(8)/2=54+12

                                     = 66                                              =66

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Answer:

I think they're vertical angles

x~Shaun

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