Aradioactive isotope has a half-life of 13 hours. find the amount of the isotope left from a 400-milligram sample after 52 hours. if necessary, round your answer to the nearest thousandth.

Which is the graph of f(x) = (4)x? image for option 1 image for option 2 image for option 3 image for option 4

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?

Determine whether the question is a statistical question. explain. 1. what is the eye of sixth grade students? 2. at what temperature (in degree fahrenheit) does water freeze? 3. how many pages are in the favorite books of students your age? 4. how many hours do sixth grade students use the internet each week? you!