Answer:
10 
Step-by-step explanation:
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All we should do is plug in the value of b:
12-2
10 (Answer)
Hope you find it helpful.
Feel free to ask if you have any questions.

Answer:
n = 225
Step-by-step explanation:
Multiply 15 by 15
Given that <span>DG, EG, and FG are perpendicular bisectors of the sides of △ABC, this means that the point of intersection, G, is the circumcenter of the triangle and hence A</span><span>G, BG, and CG are equal.
Given that </span><span>DG = 5 cm and BD = 12 cm, then

Since AG = BG = CG, therefore, CG = 13 cm.</span>
Answer:
The second choice 
Step-by-step explanation:
The missing image is attached
We use the section formula:

We substitute
and m=5, n=9

We simplify to get:

This simplifies to:

In decimals we get:
