Answer:
The 100th term will be;
10(0.5)^99
Explanation:
Firstly, we need the common difference and the first term
The first term is 10
The common difference is 5/10 = 1/2
Now, the formula for the nth term of a geometric sequence is;
ar^n-1
So, for the nth term, we have;
ar^(100-1)
= ar^99
So we have
10(1/2)^99