I believe it’s -6 square root of 2 + 3 square root of 4 + 6 square root of 5
Answer:
106 degrees
Step-by-step explanation:
Sides AB and CD are equal in length and sides AD and BC are parallel to each other. This tells us that angles B and C are equivalent. Knowing this, we can set up the following equation to solve for x:

Subtract both sides by 42

Subtract both sides by 2x

Divide both sides by 2

Now, to find angle ABC, or angle B, we can plug x back into its expression:

Therefore, the measure of angle ABC is 106 degrees.
I hope this helps!
Answer:
3
Step-by-step explanation:
8x-4=20
8x-4=20
+4. +4
8x=24
8. 8
x=3
I think the answer is neither