02-07-2016
Mathematics

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Two geometric means are inserted between 5 and 135 so the four numbers form a geometric sequence. What are these two numbers? Hint: an = a1(r)n − 1, where a1 is the first term and r is the common ratio.

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Jisallyouget Jisallyouget

02-07-2016

the two numbers are 15 and 45.
5,15,45,135.
all the numbers are time by 3 to get to the next number

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