An arithmetic sequence is given. Find the common difference and write out the first four terms.{2n + 3}

A. d = 3; 5, 7, 9, 11
B. d = 2; 2, 5, 7, 9
C. d = 3; 2, 5, 7, 9
D. d = 2; 5, 7, 9, 11


Answer: D

Mathematics

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A. (-?, -1) B. (-?, -1] C. (-1, ?) D. [-1, ?)

Mathematics

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Mathematics

The initial tableau of a linear programming problem is given. Use the simplex method to solve the problem.  

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Mathematics