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Mathematics, 23.04.2020 20:52 faithyholcomb

In a skydiving formation with r rings, each ring after the first has twice as many skydivers as the preceding ring. The formation for R=2 is shown.
a.) Let an be the number of skydivers in the nth ring. Find a rule for an.
b.) Find the total number of skydivers if there are R=4 rings.

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