Solve the polynomial inequality. Express the solution in interval notation.x2 - 4x - 21 ? 0
A. [7, ?)
B. [-3, 7]
C. (-?, -3] ? [7, ?)
D. (-?, -3]
Answer: B
Mathematics
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Solve.y = x2 + 6y = -4x + 3
A. (1, 7), (-3, 15) B. (-1, -5), (-3, 3) C. (1, 7), (3, 15) D. (-1, 7), (-3, 15)
Mathematics
Describe the curve represented by the equation. Identify the type of curve and its center (or vertex if it is a parabola).
- 
= 1
A. Ellipse, (-3, -1) B. Parabola, (1, 3) C. Parabola, (3, 1) D. Hyperbola, (1, 3)
Mathematics
Perform the indicated operation(s). Where possible, reduce the answer to lowest terms.
? 
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation.11.5 m + 34 cm (in meters)
A. 14.9 m B. 11.84 m C. 45.5 m D. 3411.5 m
Mathematics