Find a formula for the nth term of the sequence.The sequence 0, 
, 0, 
, 0, . . . (alternating 0's and 
's)
A. an = 
B. an = 
C. an = 
D. an = 
Answer: B
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Find the flux of the vector field F across the surface S in the indicated direction.F = 
k ; S is the upper hemisphere of x2 + y2 + z2 = 25; direction is away from the origin
A. - 
?
B. 
?
C. - 
D. 
Sketch a scatter plot of the data shown in the table.The table shows the number y of Wal-Mart stores for each year x from 2000 through 2007. Year, x Number of stores, y 2000 3700 2001 4400 2002 4680 2003 5010 2004 5550 2005 6360 2006 6680 2007 7340
A. ?
x: Year (0 ? 2000)
y: Number of stores
B. ?
x: Year (0 ? 2000)
y: Number of stores
C. ?
?
x: Year (0 ? 2000)
y: Number of stores
D. ?
x: Year (0 ? 2000)
y: Number of stores
E. ?
x: Year (0 ? 2000)
y: Number of stores
Simplify the complex fraction.
A. 
B. 18x(x + 9)
C. 
D. 
Convert. When necessary, round the answer to two decimal places.13 miles = _____ yards
A. 
B. 22,880
C. 13,000
D. 68,640