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krek1111 [17]
3 years ago
7

Simplify the polynomials by combining like terms 3x 5x 4x

Mathematics
1 answer:
lukranit [14]3 years ago
8 0
Hello! Combining like terms is just a fancy way of saying add all these numbers together. As long as numbers have the same variable (in this case x) and the same exponent (they don't have any in this case), you can add them together like normal. So! 3x + 5x +4x is the same as 3+5+4. Your simplified polynomial is 12x. Good luck with the math homework!
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Answer:

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Step-by-step explanation:

<h3>#1</h3>

<u>Sum of interior angles is 180</u>

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<h3>#2</h3>

<u>Sum of interior angles is 180</u>

  • 84 + 7x + 1 + 9x - 1 = 84
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<h3>#3</h3>

<u>Vertical angles are same, the sum of remaining angles is same for both triangles:</u>

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<h3>#4</h3>

<u>Exterior angle is same as the sum of non-adjacent interior angles:</u>

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8 0
2 years ago
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Find the area of a circle with diameter 12 cm.
luda_lava [24]

Answer:

113.04 cm.

Step-by-step explanation:

Step 1: <u>Formula/explain</u>

To find the area of a circle, multiply the radius by itself twice, then multiply the product pi.

a=\pi r^2(3.14*radius*radius)

Step 2: <u>Solve</u>

According to the word problem, the circle has a diameter of 12. This means it has a radius of 6.

Now, we plug the numbers into formula.

\pi 6^2 (3.14*6*6)=113.04

Step 3: <u>Conclude</u>

Therefore, the area of this circle is 113.04 cm.

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Step-by-step explanation:

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