Complete the factoring.x2 - 4x - 32 = (x + 4)( )
A. 8 - x
B. x + 8
C. -x - 8
D. x - 8
Answer: D
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Find the standard deviation for the given data.Christine is currently taking college astronomy. The instructor often gives quizzes. On the past seven quizzes, Christine got the following scores:51 16 37.0 30 14 43 74Round results to one decimal place.
A. 10,032.1 B. 37.0 C. 20.9 D. 12,647.0
Solve the problem.Devon purchased tickets to an air show for 9 adults and 2 children. The total cost was 
. The cost of a child's ticket was 
less than the cost of an adult's ticket. Find the price of an adult's ticket and a child's ticket.
A. adult's ticket: $15; child's ticket: $9 B. adult's ticket: $17; child's ticket: $11 C. adult's ticket: $18; child's ticket: $12 D. adult's ticket: $16; child's ticket: $10
Use the linear approximation (1 + x)k ? 1 + kx, as specified.Find an approximation for the function f(x) = (1 - x)6 for values of x near zero.
A. f(x) ? 6 + 6x B. f(x) ? 1 - 6x C. f(x) ? 1 + 7x D. f(x) ? 1 + 6x
Determine whether the sequence is arithmetic. If so, find the common difference.
?
3, 
, 
, 
, 2,...
?
A. Arithmetic sequence, 
B. Arithmetic sequence, d = 
C. Arithmetic sequence, d = -1
D. Arithmetic sequence, 
E. Not an arithmetic sequence