A manufacturer producing a new product, estimates the annual sales to be 9,600 units. Each year, 8% of the units that have been sold will become inoperative. So, 9,600 units will be in use after 1 year, [9,600 0.92(9,600)] units will be in use after 2 years, and so on. How many units will be in use after n years

After n years, 120,000(1 - 0.92ⁿ) units, will be in use.

Step-by-step explanation:

Given;

estimated annual sales, a = 9600 units

determine common ratio, r;

sum of the units in use after n years is calculated by applying sum of nth term;

Therefore, after n years, 120,000(1 - 0.92ⁿ) units, will be in use.

anser is a

step-by-step explanation:

negitive slope