Question

the sequence:5,25,125,625

what is the 7th term of the sequence.

what algebric expression represents the nth term

Answer 1

the 7th term is 78125

Answer 2

@sweetsunray

Answer 3

\[5 \times 5^6\]

Answer 4

Well, what pattern did you use to find the 7th term?
Replace 7 with n to find an algebraic representation of the nth term.

Answer 5

i multply by 5

Answer 6

this is a geometric sequence @NinjaDevo

Answer 7

a1 * 5^(7-1)

Answer 8

That's what I was getting at...just replace the 7 with a n....

Answer 9

@NinjaDevo when i solve that eqaution with a1 * 5^(7-1) it doesnt give me 78125 which is the 7th term

Answer 10

@math&ing001

Answer 11

@phi

Answer 12

@Pandabear78963 your answer is correct.

Answer 13

i know but what will the equation be to represent the nth term @math&ing001

Answer 14

5,25,125,625 is
5^1, 5^2, 5^3, 5^4

it looks like 5^n where n is the term number

5^7 is the answer. we should use a calculator

Answer 15

78125

Answer 16

As @phi said 5^n.

Answer 17

***when i solve that eqaution with a1 * 5^(7-1) ****

it should: 5* 5^6 = 5^7

Answer 18

thsnks @phi @math&ing001

Answer 19

Welcome !