Simplify the complex fraction.
A.
B.
C.
D.
Answer: A
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Find the center, transverse axis, vertices, foci, and asymptotes of the hyperbola.x2 - 25y2 - 8x - 100y - 109 = 0
A. center at (4, -2)
transverse axis is parallel to x-axis
vertices at (-1, -2) and (9, -2)
foci at (4 - , -2) and (4 +
, -2)
asymptotes of y + 2 = - (x - 4) and y + 2 =
(x - 4)
B. center at (4, -2)
transverse axis is parallel to x-axis
vertices at (3, -2) and (5, -2)
foci at (4 - , -2) and (4 +
, -2)
asymptotes of y + 2 = - 5(x - 4) and y + 2 = 5(x - 4)
C. center at (-2, 4)
transverse axis is parallel to x-axis
vertices at (-7, 4) and (3, 4)
foci at (-2 - , 4) and (-2 +
, 4)
asymptotes of y - 4 = - (x + 2) and y - 4 =
(x + 2)
D. center at (4, -2)
transverse axis is parallel to y-axis
vertices at (4, -7) and (4, 3)
foci at (4, -2 - ) and (4, -2 +
)
asymptotes of y - 2 = - 5(x + 4) and y - 2 = 5(x + 4)
Find the nth term {an} of the geometric sequence. When given, r is the common ratio.7, -14, 28, -56, 112, ...
A. an = 7 ? (-2)n-1 B. an = a1 - 2n C. an = 7 ? (-2)n D. an = 7 ? (-2)n
Solve the equation.s = 8 + 2
A. {16} B. {32} C. {8} D. {12}
Decide whether the equation is or is not an identity.sin (A + B) sin (A - B) = sin2A - sin2B
A. Not an identity B. Identity