Find the least common denominator (LCD).
, 
, 
A. 18
B. 30
C. 45
D. 90
Answer: D
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Determine if the series converges absolutely, converges, or diverges.
A. diverges B. converges absolutely C. converges conditionally
Choose the expression which is equivalent to the given expression.
A. tan 7° B. cot2 7° C. tan2 7° D. cot 7°
Sketch the graph of the function and find the domain and range.f(x) = (x - 4)2 + 2
A. 
domain: {x|-? < x < ?}
range: {y|y ? 4}
B. 
domain: {x|-? < x < ?}
range: {y|y ? -4}
C. 
domain: {x|-? < x < ?}
range: {y|y ? 2}
D. 
domain: {x|-? < x < ?}
range: {y|y ? 2}
Find the center, foci, and vertices of the ellipse.9x2 + y2 - 162x + 720 = 0
A. 
+ (y - 9)2 = 1
center: (9, 0); foci: (9, 2
), (9, -2
); vertices:(9, 3), (9, -3)
B. (x - 9)2 + 
= 1
center: (9, 0); foci: (9, 2
), (9, -2
); vertices:(9, 3), (9, -3)
C. 
+ (y - 3)2 = 1
center: (3, 0); foci: (3, 4
), (3, -2
); vertices:(3, 9),
(3, -9)
D. (x - 3)2 + 
= 1
center: (3, 0); foci: (3, 4
), (3, -4
); vertices:(3, 9), (3, -9)