Answer:
140°
Step-by-step explanation:
The total of interior angles in a polygon is 720 °
The total of the angles given to you is (100*2+130+125*2) = 580
Then you subtract the total of the angles given from the total value of the interior angles to get 140°
Yes I sure did hang the picture what about it
Answer:
4 4/5
Step-by-step explanation:
Answer:
(5, - 4 )
Step-by-step explanation:
Given the 2 equations
2x + 3y = - 2 → (1)
3x - y = 19 → (2)
Multiplying (2) by 3 and adding to (1) will eliminate the y- term
9x - 3y = 57 → (3)
Add (1) and (3) term by term to eliminate y
(2x + 9x) + (3y - 3y) = (- 2 + 57), that is
11x = 55 ( divide both sides by 5 )
x = 5
Substitute x = 5 into either of the 2 equations and solve for y
Substituting into (1)
2(5) + 3y = - 2
10 + 3y = - 2 ( subtract 10 from both sides )
3y = - 12 ( divide both sides by 3 )
y = - 4
Solution is (5, - 4 )
Answer:
should be 30
Step-by-step explanation:
triangles have 180°
if x is 30
2x is 60
the other angle is 90
add those all together and you get 180°
