SOLUTION: what is the average(arithmetic mean) of 3^30,3^60,3^90?

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Question 761146: what is the average(arithmetic mean) of 3^30,3^60,3^90?
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
the average(arithmetic mean) is:

or, shorter
%283%5E30%2B3%5E60%2B3%5E90%29%2F3=%288.73%2A10%5E42%29%2F3=2.91%2A+10%5E42