The population of a type of local bass can be found using an infinite geometric series where a1 = 94 and the common ratio is one third. Find the sum of this infinite series that will be the upper limit of this population.

Question

anonymous · Answer

121 

 232 

 150 

 141

mathmale · Answer

Try looking up (e. g., Googling) "geometric series sum."  The formula for this sum is quite simple; it involves the first term and the common ratio, and is valid if the absolute value of the common ratio is less than 1.

anonymous · Answer

I just tried, but it looks like I would need to know what 'n' is...?

anonymous · Answer

theres a graph. would you like me to send it?

anonymous · Answer

help someone

mathmale · Answer

Actually, you do not need to know what 'n' is.  It just so happens and can be shown that the sum of a geometric series whose first term is a and whose common ratio is r, with the stipulation that |r|<1, is$$\frac{ a }{ 1-r }$$

mathmale · Answer

That should be

      a
-------
   1 -  r

Please substitute your values of a and r into this equation and calculate the sum.

anonymous · Answer

WHAT WAS THE ANSWER TO THIS