Find the 14th term of the geometric sequence 5, - 10, 20, ...

-130

Step-by-step explanation:

The formula for the nth term of a geometric sequence is

a (n) = a (1) * r * (n - 1), where r is the common ratio, a (1) is the first term and n is the index.

/

Here r = - 2 and the first term is 5. Thus,

a (14) = 5 (14 - 1) (-2) = 5 (13) (-2) = - 130