Question

1. in recent years, japans population has been declining at a rate of 0.1% per year. if you were to write an exponential equation representing the situation, what would the decay factor be?

.999

.91

0.99

1.001

Explanation:

Step1: Convert decay rate to decimal

$0.1\% = \frac{0.1}{100} = 0.001$

Step2: Calculate decay factor

$\text{Decay factor} = 1 - 0.001 = 0.999$

Answer:

.999