A geometric series with 5 terms that begins with 1 and has a common ratio of 1/3

the answer is 13

step-by-step explanation:

5*5=25

12*12=144

25+144=169

169^2=13

6^2 or 36

step-by-step explanation:

6000n

6×1000n

6×10^3 n

so we need 6n need to be a perfect cube

so n has to be 6^2 so that 6n is 6^3

what i'm saying is if you let n be 6^2 you have 6^3×10^3 or 60^3 which is a perfect cube

i can answer this if i have the answer choices

cluster sampling.

step-by-step explanation: