a city doubles its size every 90 years if the population is currently 90,000, what will the population be in 270 years DUE IN FI
2 answers:
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Answer:
7) is not an arithmetic sequence...
9)
10)
Step-by-step explanation:
7 is not an arithmetic sequence because consecutive terms of the sequence do not have a constant common difference.
9 has a first term of 0.5 and has a common ratio of 4 (the quotient between the second term and first, then third term and second, etc.). Thus, your equation is
10 has a first term of -0.25 and has a common ratio of -8 (the quotient between the second term and first, then third term and second, etc.). Thus, your equation is