Find the foci of the ellipse.16x2 + 64x + 25y2 - 150y - 111 = 0
A. (3, -6), (3, 2)
B. (3, -5), (3, 1)
C. (-6, 3), (2, 3)
D. (-5, 3), (1, 3)
Answer: D
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Use your calculator to evaluate the expression. If necessary, round your answer to the nearest thousandth.e?
A. 5.860 B. 22.459 C. 8.540 D. 23.141
Determine whether the argument is valid or invalid.All women are wealthy. Amanda is a woman. Therefore, Amanda is wealthy.
A. Invalid B. Valid
Indicate whether the equation has no solution or is true for all real numbers. If neither is the case, solve for the variable.
- 14 = 
A. {x|x is a real number}
B. ?
C. {0}
D. 
Use the graph of a quadratic function to find the solution set of the equation or inequality. For a solution set that involves an interval, use interval notation.x2 - 7x + 10 ? 0
A. [2, 5]
B. (-?, 2) ? (5, ?)
C. x = 2, 5
D.
| (2, 5) |