Find the foci of the given hyperbola.y2 - 4x2 = 4
A. (0, 2), (0, -2)
B. (, 0), (-
, 0)
C. (0, ), (0, -
)
D. (2, 0), (-2, 0)
Answer: C
Mathematics
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A.
B.
C.
D.
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Find the inverse of the relation.{(8, -7), (12, -7), (-9, 20)}
A. {(-7, 8), (-7, 12), (20, -9)} B. {(-7, 8), (15, 12), (20, -9)} C. {(8, 15), (8, 12), (20, -9)} D. {(-7, 8), (-9, 12), (20, 15)}
Mathematics
Solve the equation or inequality graphically. Express solutions or endpoints of intervals rounded to the nearest hundredth, if necessary.- ? -x - 4
A. (-?, 1.67] ? [13, ?) B. (-?, -13] ? [-1.67, ?) C. [-1.67, -13] D. [1.67, 13]
Mathematics
Multiply and simplify. ? 3b
A. b
B.
C.
D. 11b
Mathematics