Question

Help please!
When a certain medical drug is administered to a patient, the number of milligrams remaining in the patient's bloodstream after t hours is modeled by
D(t) = 40e−0.5t.
How many milligrams of the drug remain in the patient's bloodstream after 2 hours? (Round your answer to one decimal place.)
mg

Answer 1

plug 2 in for t

Answer 2

I got that, but what do you do with the negative?

Answer 3

Does it become":\[D(t)= 40(\frac{ 1 }{ e^1 })\]

Answer 4

im not too sure the e is throwing me off

Answer 5

Yeah I'm confused :/

Answer 6

sorry I couldn't help you

Answer 7

Its fine you tried at least