A geometric sequence is given. Find the common ratio and write out the first four terms.
A. an = 2 
n-1
r = 
; 2, 
, 
, 
, ...
B. an = 2 
n-1
r = 
; 2, 1, 
, 
, ...
C. an = 
(2)n-1
r = 
; 2, 4, 8, 16, ...
D. an = 2 ? (2)n-1
r = 2; 2, 4, 8, 16, ...
Answer: B
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Determine if the sequence is decreasing or nondecreasing and if it is bounded or unbounded from above.an = 
A. Decreasing; bounded B. Nondecreasing; unbounded C. Nondecreasing; bounded D. Decreasing; unbounded
Graph the function. Describe its position relative to the graph of the indicated basic function.f(x) = 2(2 - ex), x > 0; relative to f(x) = ex
A. Stretched vert; reflected across x-axis;
moved up 4 unit(s)
B. Stretched vert; reflected across y-axis;
moved up 2 unit(s)
C. Stretched horiz; reflected across x-axis;
moved down 4 unit(s)
D. Stretched horiz; reflected across y-axis;
moved down 2 unit(s)
Solve the formula for the indicated variable.T = 2?
for L
A. L = 
B. L = 
C. L = 
D. L = 
Solve the problem.If there are x teams in a sports league and all the teams play each other twice, a total of N(x) games are played, where N(x) = x2 - x. A soccer league has 10 teams, each of which plays the others twice. If the league pays $47 per game for the field and officials, how much will it cost to play the entire schedule?
A. $4324 B. $4700 C. $4230 D. $5170