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
Answer: A
Mathematics
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Evaluate the factorial expression.
A. 
B. 30
C. 2!
D. 6
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Decide whether the statement is true or false.Regular polygons must have all equal sides but do not necessarily have to have all equal angles.
A. True B. False
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Factor.y2 - 81
A. (y + 81)(y - 81) B. (y + 9)(y - 9) C. (y - 9)(y - 9) D. (y2 + 9)(y2 - 9)
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Find the product. Write the product in rectangular form, using exact values.[4(cos 120° + i sin 120°)] [6(cos 330° + i sin 330°)]
A. 12(1 + 
)
B. 24i
C. 24
D. -12 + 12i
Mathematics