Multiply both sides by 3 and get 2x - 20 = 6x
Then subtract 2x from both sides and get
-20 = 4x. Divide both sides by 4 and then get x = -5
You can drag in the first empty box ∡3 and get ∡2≅∡3.
In the second box you can drag '' definition of angle bisector ''.
In the third empy box you can drag ∡1 and get ∡1≅∡3.
At last empy box you can drag ''transitive property of congruence''
Good luck!!!
Answer:
7
Step-by-step explanation:
You can convert the fourth square roots to
. Using the product of powers rule, we can add the four terms' exponents, resulting in
, which is 7.
Coordinates will show the vertices of the triangle, and using the vertices, calculate length of the sides of the triangle.With the side length you can now calculate the angles of the triangle.
Step-by-step explanation:
The coordinates of the triangle can be plotted on a graph tool to give you the exact shape.Then using the coordinates that represent vertices for the triangle, apply the distance formula; 
This gives the length of the sides of the triangle.With the side length values, you can apply the cosine rule : c²=a²+b²-2ab cos c to find the angles in the triangle.
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Triangle relationships : brainly.com/question/7722758
Keyword : coordinates, geometry
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Answer:
second one is the answer
Step-by-step explanation: