Answer: 
Step-by-step explanation:
<u>Given information</u>
∡ 1 = 90°
∡ 2 = 50°
∡ 3 = x°
Total Angle = 180° <em>(Triangle angle sum theorem)</em>
<u>Given formula</u>
∡ 1 + ∡ 2 + ∡ 3 = Total Angle
<u>Substitute values into the formula</u>
(90) + (50) + (x) = (180)
<u>Combine like terms</u>
140 + x = 180
<u>Subtract 140 on both sides</u>
140 + x - 140 = 180 - 140

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Answer:
answer C
Step-by-step explanation:
ive done it before
Answer:
Wakaranai
Step-by-step explanation:
Answer:
Two plus two is four.
Step-by-step explanation:
Imagine you have two cookies. Then imagine you have two more cookies.
cookie cookie
then you add
cookie cookie
How many cookies do you have now?
Answer: y=-2x-8
Step-by-step explanation:
Parallel lines need to have the same slopes but different y-intercept.
y=-2x -9 is parallel to y=-2x - 8