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iragen [17]
4 years ago
12

The population of a type of local dragonfly can be found using an infinite geometric series where a1 = 65 and the common ratio i

s one sixth. Find the sum of this infinite series that will be the upper limit of this population.
Mathematics
2 answers:
77julia77 [94]4 years ago
8 0

Answer:

78

Step-by-step explanation:

answer is a.) 78

timurjin [86]4 years ago
6 0
\bf \textit{sum of an infinite geometric serie}\\\\
S=\sum\limits_{i=0}^{\infty}\ a_1\cdot r^i\implies \cfrac{a_1}{1-r}\qquad 
\begin{cases}
a_1=65\\
r=\frac{1}{6}
\end{cases}\implies \cfrac{65}{1-\frac{1}{6}}
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