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
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Find the product.(6x + 4 + 7y)2
A. 36x2 + 48x + 84xy + 56y + 49y2 B. 36x2 + 24x + 16 + 42xy + 28y + 49y2 C. 36x2 + 84xy + 49y2 D. 36x2 + 48x + 16 + 84xy + 56y + 49y2
Solve.-36r + 24 ? -6(5r - 5) Put your answer in interval notation.
A. (-?, -1) B. (-?, -1] C. (-1, ?) D. [-1, ?)
Find the expected value.A fair coin is tossed three times, and a player wins $3 if 3 tails occur, wins $2 if 2 tails occur and loses $3 if no tails occur. If one tail occurs, no one wins. What is the expected value of the games?
A. $0.75 B. $2.00 C. -$3.00 D. $3.00
The initial tableau of a linear programming problem is given. Use the simplex method to solve the problem. 
A. Maximum at 9 for x1 = 8, x2 = 2 B. Maximum at 32 for x2 = 8, s1 = 2 C. Maximum at 36 for x2 = 2, s1 = 8 D. Maximum at 18 for x2 = 8, x3 = 2