Question

What is the 11th term of the geometric sequence with this explicit formula?
an = 5.(-2)(n-1)

Answer 1

5,120

Explanation:

an = 5.(-2)^(n-1)

a11 = 5.(-2)^(11-1)

= 5.(-2)^10

= 5.(1,024)

= 5,120