All triangles add up to 180 degrees. Since sines can't be a negative, you need to add -130 to 180. The answer to this question would be sine 50 degrees.
The answer is A because 2time 2 is 4-2 =2 and then 120times 2 =240
Answer: 8x-3
Step-by-step explanation:
7-1x-(-5x)-10+4x
7-x+5x-10+4x
Combine like terms
7-10-x+5x+4x
-3-x+5x+4x
-3+8x
8x-3
The sum of angles in any Rhombus is 360 degrees.Opposite angles of a rhombus are congruent.
Two of the adjacent angles are 2x+20 and 50 degrees.
The opposite angles measure 2x+20 and 50 degrees.
Sum of angles in any Rectangle is 360
2x+20+50+2x+20+50=360
Adding line terms,
4x+140=360
Subtracting 140 both sides:
4x=220
Dividing both sides by 4
x=55
Option B. 55 is the right answer.
