Find the domain and range of the function represented in the graph.
A. Domain: [-2, 1]; Range: [1, 4]
B. Domain: (-2, 1]; Range: [1, 4)
C. Domain: [-2, 1); Range: [-1, 6)
D. Domain: (-1, 2]; Range: [2, 4)
Answer: B
Mathematics
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Solve the problem.The parabola z = 5x2 in the xz-plane is revolved about the z-axis. Write the equation of the resulting surface in cylindrical coordinates.
A. r = 5z B. z = 5r2 C. r2 = 5z2 D. z = 5r
Mathematics
Simplify the expression.
A. 4 B. 8 C. 16 D. Not a real number
Mathematics
Simplify.9 ? 3 - 7 ? 4 + (-10)
A. 9 B. -11 C. 11 D. 45
Mathematics
Divide and, if possible, simplify. Assume all variables represent positive numbers.
A. b2
B. b2
C. b
D. b2
Mathematics