Find the exact value of the expression.sec (-495°)
A. 
B. - 
C. -1
D. - 
Answer: D
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Solve the variation problem.The time necessary to make an enlargement of a photo negative varies directly as the area of the enlargement. If 120 sec are required to make a 
enlargement, find the time required for a 
enlargement.
A. 240 sec B. 168 sec C. 216 sec D. 192 sec
Write out the first five terms of the sequence.an = (-1)n + 7
A. 1, -1, 1, -1, 1 B. 1, 1, 1, 1, 1 C. -1, 1, -1, 1, -1 D. -1,-1,-1,-1,-1
Use the Binomial Theorem to expand the binomial.(x - 6)5
A. x5 - 30x4 + 360x3 - 2160x2 + 6480x - 6 B. x5 - 30x4 + 360x3 - 2160x2 + 6480x - 7776 C. x5 - 30x4 + 720x3 - 4320x2 + 6480x - 6 D. x5 - 30x4 + 720x3 - 4320x2 + 6480x - 7776
Simplify the expression using the order of operations.8(2.7x + 2) + 7(x + 1.6)
A. 77.6x + 27.2 B. 28.6x + 3.6 C. 28.6x + 27.2 D. 48.8x