Factor completely.3x2 - 9xy - 12y2
A. 3(x + y)(x - 4y)
B. 3(x - y)(x + 4y)
C. prime
D. (3x - 3y)(x + 4y)
Answer: A
Mathematics
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Express the product as a sum or difference.sin 
cos 
A. 
sin (cos 5x)
B. 
(sin3x - sin 2x)
C. 
(cos 6x - sin 4x)
D. 
(cos 3x + sin 2x)
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Evaluate the sum. Round to the nearest hundredth, if necessary.
A. 86 B. 35 C. 93 D. 66
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Solve . Round the answer to three decimal places.
x = 13
A. -0.540 B. -3.250 C. -1.850 D. 1.850
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Find the limit algebraically.
A. -6 B. 6 C. Does not exist D. 0
Mathematics