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3 years ago

12

25 points!! Will give Brainliest!! Help please!!!

1 answer:

fredd [130]3 years ago

6 0

What I did for this question is I set up ans equation. 5x-7 + 3x+11 = 180 and I added the Xs and and I added 11 to -7. Then I got 8x+4=180. I then "-4" on both sides and then divided 8 by 176. Getting X as 22. We now know X and we put 22 into the equation for D which is "3x+11" getting 77 degrees. Hope this helped!

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Arithmetic of functions

Rzqust [24]

Its B.

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2 years ago

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Fed [463]

Answer:

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Step-by-step explanation:

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aksik [14]

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2 years ago

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2 years ago

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What is the factored form of x^3 -1

lianna [129]

Answer:

The factored form of x^3 -1 will be:

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Step-by-step explanation:

Given the expression

$x^3-1$

Rewrite 1 as 1³

$=x^3-1^3$

$\mathrm{Apply\:Difference\:of\:Cubes\:Formula:\:}x^3-y^3=\left(x-y\right)\left(x^2+xy+y^2\right)$

$x^3-1^3=\left(x-1\right)\left(x^2+x+1\right)$

$=\left(x-1\right)\left(x^2+x+1\right)$

Thus, the factored form of x^3 -1 will be:

$x^3-1^3=\left(x-1\right)\left(x^2+x+1\right)$

8 0

2 years ago