2 years ago

May someone help me with these 2 again

1 answer:

3 0

Answer:

1. 180

2. x = 31

Step-by-step explanation:

1. the sum of the interior angles of every triangle is always 180

2. using what we know from problem 1, we can create an equation:

x + 10 + 2x - 5 + 2x + 20 = 180

add like terms: 5x + 25 = 180

subtract 25 from both sides: 5x = 155

divide both sides by 5: x = 31

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jarptica [38.1K]

Answer:

2 or y=2

Step-by-step explanation:

You can find it by calculating - $\frac{b}{2a}$

- $\frac{-20}{10}$ = 2

The axis of symmetry is 2

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Sedbober [7]

Answer:

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natima [27]

I think the answer is a I'm not sure

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MAXImum [283]

The answer is -1 + 7 = 6

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kirill [66]

Your answer would be c and d because coefficients are the numbers that go in front of the variables. Have a nice day I hope this helped :)

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