Solve the problem.How many different vertical arrangements are there of 9 flags if 4 are white, 3 are blue, and 2 are red?
A. 24
B. 1260
C. 126
D. 26
Answer: B
Mathematics
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Simplify the algebraic expression.18x2 - 18x2
A. 0 B. -36x2 C. x2 D. cannot be simplified
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Find the exact value of the expression.cos 840°
A. 
B. - 
C. - 
D. - 
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Determine whether the polynomial function is cubic or quartic.
A. Cubic B. Quartic
Mathematics
Solve. Try factoring first. If factoring is not possible or is difficult, use the quadratic formula.5x2 + 12x = - 6
A. 
B. 
C. 
D. 
Mathematics