Solve the problem.Find cos 
, given that sec ? = 4 and ? terminates in 0
A. 
B. 
C. 
D. 
Answer: C
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Given the polynomial function f(x), find the rational zeros, then the other zeros (that is, solve the equation 
), and factor f(x) into linear factors.f(x) = x3 + 4x2 - 2x - 8
A. -
, multiplicity 2; -2; f(x) = (x + 
) 2(x + 2)
B. -
, multiplicity 2; -
, multiplicity 2; f(x) = (x + 
) 2(x + 
)2
C. -4, -2, 2; f(x) = (x + 4)(x + 2)(x - 2)
D. -4, -
, 
; f(x) = (x + 4)(x + 
)(x - 
)
Solve the problem.Find n when a1 = 30, d = -17, and an = -565.
A. 35 B. 2 C. 36 D. 53
Solve. Use ? ? 3.14 when necessary.A board foot is a special measure of volume used in the lumber industry. If a board foot contains 
of wood, how many board feet would be in a piece of wood that is 
Round to the nearest tenth.
A. 65 board ft B. 112,320 board ft C. 0.2 board ft D. 5.4 board ft
Express as a single logarithm.8ln (x - 2) - 3 ln x
A. ln 
B. ln 
C. ln x3(x - 2)8
D. ln 24x(x - 2)