Find the mean. Round to the nearest tenth unless otherwise stated.Scores on an aptitude test: 576, 561, 346, 356, 547, 341, 358, 553, 470, 482
A. 468.4
B. 459
C. 476
D. 450
Answer: B
Mathematics
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Find a1, d, an, n, or Sn for the arithmetic sequence, as instructed.n = 6, a1 = -8, d = -2, an = -18; Find Sn.
A. -18 B. -78 C. -20 D. -48
Mathematics
Graph the numbers on a number line.-8, -6, -4, -2
A. 
B. 
C. 
D. 
Mathematics
Solve the inequality. Give the solution set in both set-builder notation and graph form.-2y + 3 < 9 or -2y + 3 ? 17
A. 
B. 
C. 
D. 
Mathematics
Factor as completely as possible. If unfactorable, indicate that the polynomial is prime.10x2 + 23x + 12
A. prime B. (10x + 3)(x + 4) C. (2x + 3)(5x + 4) D. (2x - 3)(5x - 4)
Mathematics