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ILL GIVE A MEDAL!!!!!!!The population of a local species of dragonfly can be found using an infinite geometric series where a1 = 30 and the common ratio is two fifths. Write the sum in sigma notation and calculate the sum that will be the upper limit of this population.

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caylus

Hello,


50.

[tex] a_1*\sum_{n=1}^ \infty} (\frac{2}{5})^{n-1}=30*\dfrac{1}{1-\frac{2}{5}} =50 [/tex]

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