<span><span>Answer
No feature changes.
</span><span>Explanation
</span><span>There is no feature of the right triangle that changes. Rotation only changes the position of the triangle.
The angles remains the same and the lengths remains.</span></span>
If B is the midpoint of AC, that means that the distances from A to B and B to C are the same. The distance from A to B is 8x + 4, and the distance from B to C is 10x - 6, so we can set these two equivalent:
8x + 4 = 10x - 6
Solving for x:
4 = 2x - 6 (subtract 8x from both sides)
10 = 2x (add 6 to both sides)
5 = x (divide both sides by 2)
So, x = 5, which is the second option given.
Answer:
The answer is -3x.
Step-by-step explanation:
Combine like terms.
Hope this helps :)