Lanio O.
asked • 05/22/21PLEASE HELP me solve this problem
Consider the sequence a={9,45,225,1125,5625,…}
- What is the common ratio? 5
- What is the 17th term in the sequence?
- How do i find the 17th term? i tried using the formula an=a1(r)^n-1 but it keeps giving me the wrong answer. Help is greatly appreciated !
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2 Answers By Expert Tutors
Syeda Aaliya F. answered • 05/22/21
Tutor
New to Wyzant
Holistic Mathematics Tutor
an = a1• rn-1
a17 = 5 • 517-1
= 5• 516
=5 • 1.525878906 x 1011
= 7.629394531 x 10 11 .
Mark M. answered • 05/22/21
Tutor
5.0
(278)
Mathematics Teacher - NCLB Highly Qualified
a17 = 9(5)16
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Michael M.
So you did 9*(5)^(17-1)?05/22/21