Question

MEDAL FOR CORRECT ANSWER!

Answer 1

Chang added some chlorine to the water in a pool. The chlorine evaporated at a fixed rate every week. The table below shows the amount of chlorine f(n), in ounces, that was left in the pool after n weeks:

n f(n)
1 24
2 12
3 6
4 3

Which function best shows the relationship between n and f(n)? (1 point)


f(n) = 48(0.5)n+1
f(n) = 24(0.5)n−1
f(n) = 48(0.5)n−1
f(n) = 24(0.5)n

Answer 2

I think its B

Answer 3

I graphed the functions till I found one that worked out. What did you do to solve the problem or why do you think it is B?

Answer 4

For any geometric sequence a, ar, ar^2, ar^3, ..., ar^(n-1), we have an explicit formula:
an=arn−1
where an is the nth term, a is the first term and r is the common ratio.

Answer 5

Well your answer was correct.