Answer: 
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Work Shown:
Use the distance formula.

Or you could use the pythagorean theorem, which is how the distance formula is set up.
The answer is 8827, I hope that this helps.
Answer:
All that's necessary is to add 4 to both sides of the equation. This gives
... y = 1/2(x -8) +4
If you like, you can simplify this by eliminating the parentheses and collecting terms.
... y = 1/2·x -4 +4
... y = (1/2)x
Step-by-step explanation:
Answer: AB = 9
Step-by-step explanation:
Since B is the midpoint, AB and BC must be congruent (since theyre both half of the segment). The equation is:
2x + 5 = 5x - 1
This means x = 2, meaning AB is 9.
These are the answers that i got