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3 years ago

I need help please❤️❤️❤️❤️

Mathematics

1 answer:

matrenka [14]3 years ago

5 0

Answer:

x = 5

Step-by-step explanation:

the supplementary angle of (19x-18) = 180 - (19x-18) = 198-19x

all interior angles of a triangle = 180 degrees

180 = (7x+1) + (10x-9) + (198-19x)

180 = 7x+10X-19x+1-9+198

180 = -2x+190

-2x = -10

x = 5

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3 years ago

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Step-by-step explanation:

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3 years ago

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stiks02 [169]

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2 years ago

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stiks02 [169]

$A(7,0)\Longrightarrow\boxed{A'(-7,0)}$

Hope this helps.

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4 years ago

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