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Mathematics, 21.06.2019 16:50, lunamoon1
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, 22.06.2019 06:10, jessicaou2005
The diagram shows some steps in the construction of the inscribed circle of abc. which diagram shows the next step in the construction?
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Mathematics, 22.06.2019 09:00, asmita9876
In physics class, eva noticed the pattern shown in the diagram on the oscilloscope. which equation best represents the pattern shown on the oscilloscope? 1. y = sin x + 1 2. y = 2 sin x + 1 3. y = sin 1/2x + 1 4. y = 2 sin -1/2x + 1
Answers: 1
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