Please help fast!! The population P, in millions, of a certain country can be modeled by the function P(t) = 3.98(1.02)^t, where t is the number of years after 1990.

Part A) Write an equivalent function in the form P(t) = a(1+r)^t.

Part B) What is the value of r in your function from part A? What does this value mean in context?

2

step-by-step explanation:

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)