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Scilla [17]
3 years ago
6

I REALLY REALLY NEED HELP ON THIS I DON'T UNDERSTAND IT!!!!!!!!!!!!!!!!!

Mathematics
2 answers:
vodka [1.7K]3 years ago
8 0

Answer:

d

Step-by-step explanation:

in order for it to be a triangle the angles have to add up to equal 180

5+75+100=180 so its not a

10+80+90=180 so its not b

20+60+100=180 so its not c

45+45+45=135 so its d because the angles dont add up to 180

50+50+80=180 so its not e

Assoli18 [71]3 years ago
4 0

Answer:

D

Step-by-step explanation:

To be a triangle, you have to have 180 degrees. if you add up all of the sides, it should give you 180. If it doesn't, it isn't a triangle. I hope that helped! :)

Plz consider giving me brainliest answer as I am trying to reach a new level, thanks!

I don't know how to give brainliest tho.

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3 years ago
Show work and Factor 4x^2+xy-18y^2
grigory [225]

Answer:

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Step-by-step explanation:

Let's examine the following general product of two binomials with variables x and y in different terms:

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so we want the following to happen:

a\,c = 4\\ad+bc=1\\bd--18

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a = 4;\,\,c=1\\a=2;\,\,c=2\\a=1;\,\,c=4

Just by selecting the first one (a=4;\,\,c=1)

we get that 4d_b=1\\b=-4d-1

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bd=-18\\(-4d-1)\,d=-18\\-4d^2-d=-18\\4d^2+d-18=0

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which makes our factorization:

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