Which value is the 14th term of the sequence 1/81?

The sequence of the problem is 1/81, 1/27, 1/9, 1/3 in which we can see is a geometric series with a geometric factor of 3. The geometric sequence formula is an = a1 r ^ (n-1). if n is equal to 14 with a1 is equal to 1/81. an is equal to 19683.  

1. isolate the variable, in this case, d. subtract 35.5 on both sides of the equation.2. 52 subtracted by 35.5 is 16.53. therefore your answer would be d= 16.5this is the basics of pre algebra, isolating variable through adding, subtracting, multiplying, and dividing, if you have any other questions to ask just comment!

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