Find the vertices of the hyperbola with the given equation.
- 
= 1
A. (0, -10), (0, 10)
B. (-10, 0), (10, 0)
C. (-2, 0), (2, 0)
D. (0, -2), (0, 2)
Answer: C
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Which of the following does not describe a negative slope? ?
A. ?As x increases, y decreases. B. ?As x decreases, y increases. C. ?As x decreases, y decreases. D. ?As x increases, y increases. E. ?Both c and d. F. ?None of the above.
Use counting rules to determine the probability.Dave puts a collection of 15 books on a bookshelf in a random order. Among the books are 2 fiction and 13 nonfiction books. What is the probability that the 2 fiction books will be all together on the left side of the shelf and the 13 nonfiction all together on the right side of the shelf?
A. 0.01619 B. 0.01809 C. 0.01333 D. 0.00952
Solve the linear inequality. Graph the solution set on a number line, and express the solution using interval notation.5 - 3(1 - x) ? -1
A. (-?, -1)
B. (-?, -1]
C. (-?, 0]
D. [-1, ?)
Use the discriminant to find what type of solutions (two rational, two irrational, one rational, or two nonreal complex) each of the following equations has. Do not solve the equation.9x2 + 12x + 4 = 0
A. one rational solution B. two nonreal complex solutions C. two irrational solutions D. two rational solutions