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Please answer soon. (35 Points)

Please answer soon. (35 Points)-example-1
User Dnim
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2 Answers

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23 votes

Answer: (7x-1) + (3x-9) = 180

Explanation:

Since the angles DBA and ABC lie on a horizontal line, they are supplementary angles, meaning that the sum of their angle measures is 180 degrees. Knowing this, you can set up the equation (7x-1) + (3x-9) = 180 in order to find the value of x.

I hope this helps!

User Carnell
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17 votes

Answer:

A) 7x - 1 + 3x - 9 = 180

Explanation:

Since these angles are supplementary, they have to add up to 180

Only the first choice does that

User Tomask
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