Evaluate, if possible
A. 8
B. -4
C. 16
D. 4
Answer: D
Mathematics
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Use the ac method to factor the trinomial, or state that the trinomial is prime.8x2 - 18x + 9
A. (8x + 3)(x + 3) B. prime C. (2x + 3)(4x + 3) D. (2x - 3)(4x - 3)
Mathematics
Use Chebyshev's theorem to solve the problem.In a certain distribution of numbers, the mean is 50 and the standard deviation is 6. What can you say about the percentage of numbers that lie between 29 and 71?
A. at least 91.8% B. at most 8.2% C. at least 71.4% D. at most 28.6%
Mathematics
Solve the problem.The number of edges in the complete graph with 100 vertices is
A. 99.
B. 100!.
C. 
.
D. 
.
E. none of these
Mathematics
Solve the inequality. Express your answer using interval notation.-15 ? -2x - 3 ? -11
A. (4, 6)
B. [-6, -4]
C. [4, 6]
D. (-6, -4)
Mathematics