Mathematics, 01.11.2019 06:31 Kazya4
The half-life of radium-226 is 1590 years. (a) a sample of radium-226 has a mass of 200 mg. find a formula for the mass of the sample that remains after t years. (b) find the mass after 1000 years correct to the nearest milligram. (c) when will the mass be reduced to 30 mg?
Answers: 3
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Which equation represents the partial sum of the geometric series?
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The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x
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Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18
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The half-life of radium-226 is 1590 years. (a) a sample of radium-226 has a mass of 200 mg. find a f...
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