Gothlegend

06-01-12, 12:13

I couldn't find a thread on this and am in serious need for some math help at the moment :p

So here's the problem: For all numbers x and y, (x,y)! Is defined as the average of x and y. (2,10)!-(2,2)!

The answer choices are:

(2,5)!

(2,10)!

(3,6)!

(5,4)!

(7,1)!

Any help is greatly appreciated as I have no idea where to start.

So here's the problem: For all numbers x and y, (x,y)! Is defined as the average of x and y. (2,10)!-(2,2)!

The answer choices are:

(2,5)!

(2,10)!

(3,6)!

(5,4)!

(7,1)!

Any help is greatly appreciated as I have no idea where to start.