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ANEK [815]
3 years ago
13

Simplify (2x^2−3x+9)+(6x^2+x−1)​

Mathematics
1 answer:
laiz [17]3 years ago
4 0

Answer:

8x^2-2x+8

Step-by-step explanation:

2x^2−3x+9)+(6x^2+x−1)

Combine like terms

2x^2 +6x^2 -3x+x +9-1

8x^2-2x+8

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Please help ! this stuff is so hard ​
Alecsey [184]

Answer:

72 degrees

Step-by-step explanation:

180-45-63=72

4 0
3 years ago
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<img src="https://tex.z-dn.net/?f=%5Ctext%7BSolve%20for%20%27x%27.%7D%5C%5C%5C%5C%5C%5C3x%20%2B%2056%20%3D235" id="TexFormula1"
3241004551 [841]

Answer:

x=\frac{179}{3}

Step-by-step explanation:

We are solving for x in the equation:

3x+56=235

First, isolate the variable term by subtracting 56 from both sides of the equation:

3x=179

Now, divide both sides of the equation by the coefficient of x:

x=\frac{179}{3}

This solution for x, as a decimal, would be non-terminating. If you divided 179 into 3, you would get the non-terminating decimal of:

59.66666...

Therefore, our solution is:

x=\frac{179}{3}

-

We can check our solution by substituting \frac{179}{3} for x in the initial equation:

3x+56=235

Substitute:

3(\frac{179}{3} )+56=235

Simplify 3(\frac{179}{3} ):

179+56=235

Add:

235=235

Since both sides of the equation are equal, our solution is correct!

5 0
3 years ago
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What is the solución to this equation <br> X/5=30
Mama L [17]

Answer:

150

Step-by-step explanation:

x/5=30

x=30*5

x=150

Hoped this helped!

5 0
3 years ago
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1/3x + 2 =4 I need it ASAP​
mihalych1998 [28]
6! I hope this helps!
6 0
3 years ago
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Which triangle has an irrational number as one of its side lengths?
Ulleksa [173]

Answer:

Option 4

Step-by-step explanation:

The square root of 25 is 5 so it is not number 1

The root of 400 is 20 so it is not number 2

the square root of 676 is 26 so it not that.

That leaves option four which is irrational

7 0
3 years ago
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