Mathematics, 04.08.2019 00:10, ajsoccer1705

The half-life of a radioactive substance is 14 days. after 4 days a sample of the substance has been reduced to a mass of 4 mg.
what was the initial mass in mg) of the sample?
round your answer to 2 decimal places as need.
using your answer from above, after how many days will there only be 0.5 mg of substance left?
round your answer to 2 decimal places as needed.

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 17:40, ArielA13

Bradley hikes 12 miles in 3 hours. in relation to bradley’s hike, which statement describes the expression

Answers: 2

continue

Mathematics, 21.06.2019 20:30, amauris77748

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?

Answers: 3

continue

Mathematics, 21.06.2019 23:30, travawnward

What is the ratio for the surface areas of the cones shown below, given that they are similar and that the ratio of their radii and altitudes is 2: 1? submit

Answers: 1

continue

Mathematics, 22.06.2019 03:30, person76

Y< 2x-3 y? mx+3 which value of m and which symbol result in the system of inequalities shown above having no solution? a) m=-2; > b) m=-1/2; < c) m=2; > d) m=2;

Answers: 3

continue

Do you know the correct answer?

The half-life of a radioactive substance is 14 days. after 4 days a sample of the substance has been...