Answer:
I think it's B.
Step-by-step explanation:
Because the equation is 1 - 0.144/24 should represent the amount of emails to be answered after one day.
Answer:
D. The decay rate, which reveals the hourly rate of change in the number of customers whose subscriptions are due to be renewed.
Step-by-step explanation:
An exponential decay function is,
[tex]f(x)=a(1-r)^x[/tex]
Where, a is initial value,
r is rate of change per period,
x is the number of periods,
(1-r) is decay factor that shows the periodic rate of change in the initial value.
Given expression that represents the number of such customers after n days is,
[tex]15,000(1-\frac{0.144}{24})^{24n}[/tex]
By comparing,
15,000 is the initial number of customers who are due to be renewed,
[tex]\frac{0.144}{24}[/tex] is the change per hour in the number of customers,
24n is the total number of hours,
[tex](1-\frac{0.144}{24})[/tex] is the decay factor or decay rate that reveals the hourly rate of change in the number of customers,
Hence, option 'D' is correct.
