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OpenStudy (anonymous):
GEOMETRIC SERIES After touchdown, a landing aircraft travels 200 feet the first second, 160 feet the next second, 121 feet the third second, and so on. How many feet will the plane travel in 10 seconds?
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OpenStudy (anonymous):
I will try to find the formula for you
OpenStudy (anonymous):
Sn = a1 (1-r^n) / (1-r)
OpenStudy (anonymous):
I will try to solve it
OpenStudy (anonymous):
okk
OpenStudy (anonymous):
I didn't find much, I think the second best solution is to use your calculator
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