bookie3132 bookie3132

14-07-2016
Mathematics

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What is the r value of the following geometric sequence? 40, 20, 10, 5,…

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Dcmojo817 Dcmojo817

14-07-2016

It seems to be Half of the number]again and again. Half of 40 is 20 half of 20 is 10 half of 10 is 5 and half of that is 2.5 then 1.25 and so on

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14-07-2016

r=Asub2/Asub1
=20/40
=½

Answer Link

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