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Nutka1998 [239]
3 years ago
5

Please Help me. . . . . .

Mathematics
2 answers:
ololo11 [35]3 years ago
8 0

Answer:

D

Step-by-step explanation:

f(x)-g(x)=x²+2x-5+3x²+4x-1  combine like terms

4x²+6x-6

avanturin [10]3 years ago
6 0

Answer:

D

Step-by-step explanation:

x^2+2x-5-(-3x^2-4x+1)

x^2+2x-5+3x^2+4x-1

4x^2+6x-6

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Answer:

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Step-by-step explanation:

I'm not really sure if this correct its just a guess but here goes.

So as 26x+5 is a vertically opposite angle. So the top angle would be 25x+5.

then we know angles in a triangle add up to 180 degrees so we would add all the angles together. 26x+5+6x-5+20=180. 26x+6x=32x. -5+5=0. 32x+20=180

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30-5=25 so angle A is 25?

Please let me know if this is correct and if its not I'm sorry.

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