Identify the domain and range of the relation.{(-1, -4), (2, 5), (4, 1), (4, -5)}
A. D = {-1, 2, 4, 4}; R = {-4, 5, 1, -5}
B. D = {-1, 2, 4}; R = {-4, 5, 1, -5}
C. D = {-4, 5, 1, -5}; R = {-1, 2, 4}
D. D = {-1, 2, 4, -4}; R = {-4, 5, 1, -5}
Answer: B
Mathematics
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A. an = 1 + (-1)(n(n - 1))/2 B. an = 1 + (-1)(n(n + 1))/2 C. an = 1 + (-1)((n+1)(n+2))/2 D. an = 1 + (-1)(n(n + 1)(n + 2))/6
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Determine convergence or divergence of the series.
A. Converges B. Diverges
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Simplify.
A. 
B. 
C. 
D. 
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Solve the problem.The amount of a radioactive substance present, in grams, at time t in months is given by the formula 
Find the number of grams present in 2 years. If necessary, round to three decimal places.
A. 54.409 B. 527.803 C. 5278.032 D. 5.441
Mathematics