Use the sequence below to answer each question

Question

25, 10, 4, 8/5, ...

Part A: Create a geometric sequence function

Part B: Find the 7th term in the sequence

Answer 1

ratio = 2/5

AN = 25(2/5)^(N-1)

A1=25

A2=25(2/5) = 10

A3 = 25(2/5)^2 = 25(4/25) = 4

A4=25(2/5)^3 = 25(8/125) =8/5

A5=25(2/5)^4 =25(16/625) = 8/5x2/5= 16/25

A6 = 16/25x 2/5 = 32/125

A7= 32/125 x 2/5 = 64/625