Answer:
X=50°
Step-by-step explanation:
Let, the fourth angle in the quadrilateral be ∠A
The sum of all the four angles of the quadrilateral is 360°
So 40° + 110°+80°+∠A=360°
230°+∠A=360°
∠A=360°-230°
∠A=130°
The fourth angle of the quadrilateral is 130°
The angle A and X are the angles on a straight line
The sum of the angles on a straight line is 180°
so, ∠A+∠X=180°
130°+∠X=180°
∠X=180°-130°
X=50°
Answer:
-10x+10y-6
Step-by-step explanation:
-4x+17-2y-6x+12y-23
-10x+17-2y+12y-23
-10x+10y+17-23
-10x+10y+-6
"Twice the previous term" means the previous term is multiplied by 2 to get the present term. In other words, the next term is 2 times the present term.
The first term is 9 (given).
The second term is 2×9 = 18.
The third term is 2×18 = 36.
You can figure the 4th term, but there is no need. This is sufficient to identify the correct answer as ...
... D. 9, 18, 36, 72
