Mathematics, 30.01.2022 14:00, ibidnnudny2623
A sample of a radioactive isotope had an initial mass of 650 mg in the year 2003 and decays exponentially over time. A measurement in the year 2005 found that the sample's mass had decayed to 490 mg. What would be the expected mass of the sample in the year 2007, to the nearest whole number?
Answers: 3
Mathematics, 21.06.2019 18:40, miguel3maroghi
Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.
Answers: 3
Mathematics, 21.06.2019 19:10, KariSupreme
At a kentucky friend chicken, a survey showed 2/3 of all people preferred skinless chicken over the regular chicken. if 2,400 people responded to the survey, how many people preferred regular chicken?
Answers: 1
Mathematics, 21.06.2019 23:50, davfar334p47luq
Given δjkl : δxyz, find x. a)10 b)12 c)16 d)20
Answers: 2
A sample of a radioactive isotope had an initial mass of 650 mg in the year 2003 and decays exponent...