Answer:
150 D
Explanation:
In a triangle the interior angles must add up to 180, so to find angle 1 you must subtract angles 2 and 3 from 180:
180-100 = 80
80-50 = 30
So the measure of angle 1 is 30. Now because we know that a straight line is 180 degrees, we know that if there is a line connected to it, the angles that it forms must add back up to 180. So we would subtract angle 1 from 180 to get angle 4:
180-30 = 150
That is why 150 or D is your answer.
Hope this helps!
Answer:
Step-by-step explanation:
do you know the answer
(3,2) because it is in the direct center
Answer: 7x + 2y + 2
Step-by-step explanation:
4(3x) + 7 - 5x - 5 + 3y - y
= 12x + 7 - 5x - 5 + 3y - y
= 7x + 2y + 2
