Mathematics, 09.12.2019 03:31, brooke012002
An object falls 9 meters during the first second, another 27 meters during the second second, and then 81 meters more during the third second. if this pattern continues, how far does the object fall during the first 4 seconds?
hint: cap s sub n equals start fraction a sub one left parenthesis one minus r to the power of n end power right parenthesis over one minus r end fraction comma r ≠ 1, where a1 is the first term and r is the common ratio.
117 meters
360 meters
426 meters
980 meters
Answers: 3
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