Perform the indicated operations and simplify the result. Leave the answer in factored form.
+ 
A. 
B. 
C. 
D. 
Answer: B
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Find ? to four significant digits for 0 ? ? < 2?.sec ? = -2.346
A. 2.011, 4.272 B. -1.168, 7.451 C. -2.701, 5.153 D. 2.011, 5.153
Find the inverse of the function, and state the domain and range of the inverse function.f(x) = 5 cos (2x) + 8 for 0 ? x ? 
A. f-1(x) = 
cos-1 
; domain = [3, 13]; range = 
B. f-1(x) = 
cos-1 
; domain = [-13, 13]; range = 
C. f-1(x) = 
cos-1 
; domain = [3, 13]; range = 
D. f-1(x) = 
cos-1 
; domain = [3, 13]; range = 
Find the center, transverse axis, vertices, foci, and asymptotes of the hyperbola.
- 
= 1
A. center at (0, 0)
transverse axis is x-axis
vertices at (-10, 0) and (10, 0)
foci at (- 2
, 0) and (2
, 0)
asymptotes of y = - 5 and y = 5
B. center at (0, 0)
transverse axis is x-axis
vertices at (-2, 0) and (2, 0)
foci at (-10, 0) and (10, 0)
asymptotes of y = - 5 and y = 5
C. center at (0, 0)
transverse axis is y-axis
vertices at (0, -2) and (0, 2)
foci at (- 2
, 0) and (2
, 0)
asymptotes of y = - 5 and y = 5
D. center at (0, 0)
transverse axis is x-axis
vertices at (-2, 0) and (2, 0)
foci at (- 2
, 0) and (2
, 0)
asymptotes of y = - 5 and y = 5
Find the focus and the directrix of the parabola.(y - 8)2 = -4(x + 2)
A. Focus: (-3, 8); directrix: x = -1 B. Focus: (-3, 8); directrix: y = -1 C. Focus: (-3, 8); directrix: x = -2 D. Focus: (-1, 8); directrix: x = -3