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29 Sep 2019

Given sequence -2, 6, -18, 54,... find its common ratio?

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Related questions

what is the common ratio of the sequence?

-2, 6, -18, 54,...

sangriaelk629

Write a word problem to match the expression step by step

x/3 = x/4 + 18

-x/4 -x/4

(x/3 - x/4) = 18

*multiply to change the denominators*

(4x/6 - 3x/6) = 18

x/6 = 18

6(x/6) = 6(18)

x = 108

Now we just halve that to get the number

108 ÷ 1/2 = 54

54 is the answer

bigcookie1480

Given the functions as per the table below, evaluate .

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Given sequence -2, 6, -18, 54,... find its common ratio?

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