SOLUTION: The function N(t)=-0.046t^3+2.08t+2 gives the bodily concentration in parts per million of a dose of medicine, t hours after the medicine has been swallowed. In ppm, what's the con

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: The function N(t)=-0.046t^3+2.08t+2 gives the bodily concentration in parts per million of a dose of medicine, t hours after the medicine has been swallowed. In ppm, what's the con      Log On


   

Question 222449: The function N(t)=-0.046t^3+2.08t+2 gives the bodily concentration in parts per million of a dose of medicine, t hours after the medicine has been swallowed. In ppm, what's the concentration 4 hours after administration? (to nearest thousandths)
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Simply plug in t=4 and evaluate (using a calculator) to get:

N%284%29=-0.046%284%29%5E3%2B2.08%284%29%2B2=7.376

So the concentration is 7.376 ppm after 4 hrs.