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Mathematics, 21.06.2019 16:50
The rate of decay of a radioactive substance depends upon the amount present initially. the mass y (mg) of the radioactive substance cobalt-60 present in a sample at time t (years) is represented by the exponential equation y=50e −0.1315 t . answer the following questions in complete sentences. 1. how does the exponential equation above compare to the equation for simple interest that is compounded continuously? explain the similarities. 2. what is the initial amount of cobalt-60 in the sample? 2. how much cobalt-60 is left after 8.4 years? show your work. 3. what would be the y-intercept of the graph? what does it represent? 4. after how many years will the amount of cobalt-60 left be 6.25 mg? explain what happens to the cobalt-60 after 50 years? 5. discuss some “real-world” examples and uses of cobalt-60
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Mathematics, 21.06.2019 21:00
Joanie watched 1 out of three of a movie in the morning
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Mathematics, 21.06.2019 22:30
Julie was able to walk 16 km through the zoo in 6 hours. how long will it take her to walk 24 km through the zoo?
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Mathematics, 21.06.2019 22:30
Meghan has created a diagram of her city with her house, school, store, and gym identified. a. how far is it from the gym to the store? b. meghan also wants to walk to get some exercise, rather than going to the gym. she decides to walk along arc ab. how far will she walk? round to 3 decimal places.
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Mathematics, 08.05.2020 09:57
Physics, 08.05.2020 09:57
History, 08.05.2020 09:57
Social Studies, 08.05.2020 09:57
Chemistry, 08.05.2020 09:57
English, 08.05.2020 09:57
Social Studies, 08.05.2020 09:57
Mathematics, 08.05.2020 09:57
English, 08.05.2020 09:57