Find the foci of the hyperbola.y2 - x2 = -50
A. (10, 0) and (-10, 0)
B. (
, 0) and (-
, 0)
C. (5, 0) and (-5, 0)
D. (0, 10) and (0, -10)
Answer: A
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Solve the problem.A small farm field is a square measuring 230 ft on a side. What is the perimeter of the field? If you double the length of each side of the field, what is the new perimeter?
A. 230 ft, 920 ft B. 460 ft, 920 ft C. 920 ft, 1840 ft D. 460 ft, 1840 ft
Sketch the graph and show all local extrema and inflection points.f(x) = -x4 + 4x2 - 4
A. Local maxima: (-
, 0), (
, 0)
Local minimum: (0, -4)
No inflection points
B. Local maxima: (-
, 0), (
, 0)
Inflection points: 
, 
C. Local minima: (-
, 0), (
, 0)
Local maximum: (0, 4)
Inflection point: 
, 
D. Local maxima: (-
, 0), (
, 0)
Local minimum: (0, -4)
Inflection points: 
, 
Use the given information to determine whether the sets are equal. U = {1, 2, 3, 4, 5, 6, 7, 8} A = {1, 3, 5, 7} B = {2, 3, 4, 5, 6}(A ? B)', A' ? B'
A. Equal B. Not equal
Rewrite the fraction in simplest form.
A. 
B. 
C. 
D. 