Depends. If your util is high and you get a new account with a high limit it'll drop your util enough that it'll make your score go up equalizing the hit from AAoA decrease and the INQ.

on the other hand... if you have low or no util your score will go down from the AAoA decrease and INQ.

Use the Fico Simulator.

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Starting Score: 575 (As Of Early 2011)
Current Score: TU: 767 EQ: 732 EX; 742 (As Of Feb 2012)
Goal Score: 750

Take the FICO Fitness Challenge

Long way to go ^_^