If $8500 is invested at 12.7% compounded continuously, the future value s at any time t (in years) is given by the following formula. (round your answers to two decimal places.) s = 8500e0.127t
(a) what is the amount after 18 months? s = $
(b) how long before the investment doubles? t = yr

Given formula is :

S =

We have p = 8500

r = 12.7% or 0.127

(a) when t = 18 months or years

S =

=

== 1.20985

S = $10283.73

(b) Investment doubles means S =

=>

Taking log on both sides

We get t = 5.45 years

sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.