Determine whether the given sequence is arithmetic, geometric, or neither. If the sequence is arithmetic, find the common difference; if it is geometric, find the common ratio.
A. Geometric; r =
B. Arithmetic; d =
C. Geometric; r =
D. Neither
Answer: C
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Four players (A, B, C, and D) agree to divide the 15 items shown below by lining them up in order and using the method of markers. The players' bids are as indicated.
Item 13
A. goes to A. B. goes to B. C. goes to C. D. goes to D. E. is left over.
Find the domain and the range for the function.
A. D: All real numbers, R: All real numbers
B. D: 
, R: 
C. D: 
, R: 
D. D: 
, R: 
Solve the equation.
= 
x
A. x = 
B. x = 
C. x = 
D. x = 
Find the center, foci, and vertices of the ellipse.
+ 
= 1
A. center at (-1, 2)
foci at (-1 + 2
, 2), (-1 - 2
, 2)
vertices at (-7, 2), (5, 2)
B. center at (-1, 2)
foci at (-1 + 2
, -1), (-1 - 2, -1)
vertices at (6, 2), (-6, 2)
C. center at (-1, 2)
foci at (- 2, 2), (2
, 2)
vertices at (6, 2), (-6, 2)
D. center at (2, -1)
foci at (2 + 2
, -1), (2 - 2
, -1)
vertices at (-7, 2), (5, 2)