Find the vertex, focus, and directrix of the parabola.x2 = 8y
A. vertex: (0, 0)
focus: (-2, 0)
directrix: x = 2
B. vertex: (0, 0)
focus: (2, 0)
directrix: x = -2
C. vertex: (0, 0)
focus: (0, 2)
directrix: y = -2
D. vertex: (0, 0)
focus: (0, -2)
directrix: y = 2
Answer: C
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A. 2760 rotations B. 1380 rotations C. 2300 rotations D. 690 rotations
Verify that the equation is an identity.cot(x + y) cot(x - y) = 
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Write the word name for the number.235,060
A. Twenty-three thousand, five hundred sixty B. Two million, thirty-five thousand, sixty C. Twenty-three thousand, five hundred six D. Two hundred thirty-five thousand, sixty
Solve the equation on the interval 0 ? ? < 2?.2 sin2 ? - 3 sin ? - 2 = 0
A. 
B. 
C. 
D. 