Mathematics, 16.04.2020 23:01, angie7665
The half-life of a radioactive substance is 12 days. After 11 days a sample of the substance has been reduced to a mass of 7 mg.
What was the initial mass (in mg) of the sample?
Round your answer to 2 decimal places as needed.
Using your answer from above, after how many days will there only be 0.1 mg of substance left?
Answers: 1
Mathematics, 21.06.2019 18:20, katlynnschmolke
What is the solution set of the quadratic inequality x2- 5< 0? o {xl-55x55{x- 155x55){xl -55x5 15){x1 - 15 sx5/5)
Answers: 2
Mathematics, 21.06.2019 18:50, brooke0713
Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling
Answers: 1
The half-life of a radioactive substance is 12 days. After 11 days a sample of the substance has bee...
Biology, 07.10.2019 08:02
Health, 07.10.2019 08:02
Spanish, 07.10.2019 08:02
World Languages, 07.10.2019 08:02
Mathematics, 07.10.2019 08:02
History, 07.10.2019 08:02