Question

8. The amount f (t)of a certain medicine, in milligrams, in a patient's

bloodstream t minutes after being taken is given by f(t) =
Find the amount of medicine in the blood after 20 minutes.

Answer 1

Explanation:

Since the formula is given, we only need to substitute 20 for t to find the answer.

60t/t sq. + 46 we substitute 20 for x:

60(20)/ 20x20 +46

1200/446 which equals

2.6905 milligrams

Answer 2

The amount of medicine in the patient's blood after 20 minutes is 2.6906 milligrams

Explanation:

The amount of medicine in the patient's blood after 20 minutes will given by;

f(20)

since we are informed that the amount f(t) of a certain medicine in a patient's bloodstream t minutes after being taken is given by f(t);

We simply substitute t = 20 in the function f(t);

`f(20)=(60(20))/(20^(2)+46 )=2.6906`