In an animal hospital, 15 units of a certain medicine were injected into a dog?. After 50 minutes only six units remained in the dog. Let f(t) be the amount of the medicine present after T minutes. At any time the rate of change F(t) is proportional to the value of? f(t). Find the formula for f(t)The formula is f(t) =

In an animal hospital, 15 units of a certain medicine were injected into a dog. After 50 minutes, only 6 units remained in the dog. Let f(t) be the amount of the medicine present after t minutes. At any time, the rate of change of f(t) is proportional to the value of f(t). Find the formula for f(t). . . . C The formula is f(t) = (Use integers or decimals for any numbers in the equation. Round to three decimal places as needed.)