A drug has a decay rate of k = - ln(1/3) / 2 per hour. How soon after an initial dose of 9 mg will the drug reach its minimum therapeutic value of 1 mg in the body?

sine

step-by-step explanation:

college

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11

answer: i wpould go with c

step-by-step explanation: