SOLUTION: http://media261.acellus.com/Library/00001211_14_1941_A1.png Help?

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Question 1023097: http://media261.acellus.com/Library/00001211_14_1941_A1.png
Help?
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Use the Distance Formula.

C(7,-4), and D(-8,-5).

sqrt%28%287-%28-8%29%29%5E2%2B%28-4-%28-5%29%29%5E2%29 and simplify and compute.