subject
Mathematics, 01.04.2021 05:20 allhailkingmilkdud

The​ half-life of the radioactive element unobtanium-43 is 20 seconds. If 80 grams of unobtanium-43 are initially​ present, how many grams are present after 20 ​seconds? 40 seconds? 60 seconds? 80 seconds? 100 seconds?

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 15:00
Ascatterplot is produced to compare the size of a school building to the number of students at that school who play an instrument. there are 12 data points, each representing a different school. the points are widely dispersed on the scatterplot without a pattern of grouping. which statement could be true
Answers: 1
question
Mathematics, 21.06.2019 15:00
If there are 12 moths and some have 31 days and others have 30 days how many have 28 days?
Answers: 2
question
Mathematics, 21.06.2019 21:30
Amira is painting a rectangular banner 2 1/4 yards wide. the banner will have a blue background. amira has enough paint to cover 1 1/2 square yards of the wall. the school colors are blue and yellow, so amira wants to add yellow rectangles on the left and right sides of the blue rectangle. the yellow rectangles will each be 3/4 yards wide and the same height as the blue rectangle. what will be the total area of the two yellow rectangles?
Answers: 3
question
Mathematics, 21.06.2019 23:00
Over the course of a month, a person's weight decreases. what type of relationship is this? a. positive relationship
Answers: 3
You know the right answer?
The​ half-life of the radioactive element unobtanium-43 is 20 seconds. If 80 grams of unobtanium-43...
Questions
question
Mathematics, 22.01.2020 03:31
question
Chemistry, 22.01.2020 04:31