Exponential problem with E. coli

[rachael]

20 The number of parts per million, x, of E. coli in a stream t hours after a pollutant containing E. coli is introduced is modeled by
x(t) = loge (t + e2), t ≥ 0.
a How many parts per million of E. coli are introduced into the stream?
how do i work out this question?

 

[George Jones]

At what time t does the introduction of E coli take place?

Regards,
George

 

[Hootenanny]

I'm assuming you know the laws of logs? How far have you worked through the problem?

 

[rachael]

thank you . ...

 

[rachael]

i let t=0 therefore loge e2 equals to 2 is it correct?

 

[Rich B.]

i let t=0 therefore loge e2 equals to 2 is it correct?

2 ppm, yes. Nice work!

Regards,

Rich B.