What is the fifth term in the geometric sequence described by this explicit formula y=40×(-2)^(n-1)

Question

asked Jun 13, 2020 171k views

1 Answer

Benoit Marilleau · Answer 1 · 2020-06-19T09:28:13+0000

Answer:

The fifth term is 620

Explanation:

y=40×(-2)^(n-1)

The 5th terms means n=5

y = 40 * (-2) ^ (5-1)

= 40 * (-2) ^4

= 40 * (16)

= 640