Factor completely.20x2 - 3x - 9
A. (4x + 3)(5x - 3)
B. cannot be factored
C. (20x - 3)(x + 3)
D. (4x - 3)(5x + 3)
Answer: D
Mathematics
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Perform the indicated operations.(4k2 + 2k - 5) - (4k2 - 3k) + (2k2 + 5k - 4)
A. 2k2 + 10k - 9 B. 10k2 + 10k - 1 C. 10k2 + 10k - 9 D. 2k2 + 10k - 1
Mathematics
Use the information below to determine the cardinality of the set. U = {x | x ? N and x ? 12} A = {x | x ? N and 6 < x < 12} B = {x | x ? N and x is even and x < 12}n(A' ? B)
A. 8 B. 12 C. 9 D. 3
Mathematics
Subtract.56,895
A. 34,663 B. 34,599 C. 34,659 D. 36,663
Mathematics
Find the exact value by using a half-angle identity.sin 22.5°
A. - 
B. 
C. 
D. - 
Mathematics