Answer:
∠ 1 = 109° , ∠ 2 = 71°
Step-by-step explanation:
The 2 angles form a linear pair and sum to 180°
Sum the 2 angles and equate to 180
5x + 9 + 3x + 11 = 180 , that is
8x + 20 = 180 ( subtract 20 from both sides )
8x = 160 ( divide both sides by 8 )
x = 20
Then
∠ 1 = 5x + 9 = 5(20) + 9 = 100 + 9 = 109°
∠ 2 = 3x + 11 = 3(20) + 11 = 60 + 11 = 71°
By using Pythagoreans Theorem: a^2 + b^2 = c^2
We can see that the only change that occurs to the points after the reflection is that the x-values are negated, because -4 becomes 4 and -6 becomes 6. And the only reflection that causes only a negation in the x-values is a reflection over the x-axis.
Hope this helps
Answer:
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Step-by-step explanation:
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A. all of the answers are correct when you plug in these values
