Evaluate the spherical coordinate integral.

A. ?
B.

?

C. 1944?
D. ?


Answer: B

Mathematics

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Find the domain and the range for the function.

A. D: [2, ?), R: [0, ?) B. D: [0, ?), R: (-?, 0] C. D: (2, ?), R: [0, ?) D. D: (0, ?), R: (-?, 0)

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Find the vertex and directrix of the parabola.  

A. vertex:           directrix: y=1
B. vertex:           directrix: y=12
C. vertex:           directrix: y=6
D. vertex:           directrix: y=-1
E. vertex:           directrix: y=-7

Mathematics

Solve the system of equations using matrices.x + 2y - 2z = -103x + y + z = 21 x - 3y + 3z = 27

A. (6, -3, 4) B. (9, -6, 4) C. (6, -6, 5) D. (9, -3, 5)

Mathematics

Use Cramer's rule to find the solution of the system, if possible. ? ?

A. x = 2, y = -2 B. x = 5, y = -12 C. x = 5, y = -5 D. The system is inconsistent. E. The equations are dependent.

Mathematics