Solve the problem.Find cos ?, given that cos 2? = 
and ? terminates in quadrant I.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Solve the problem.Find the image of the given figure under a 90° counterclockwise rotation about P.
A. 
B. 
C. 
D. 
Mathematics
Factor using the reverse FOIL method.8x2 + 6x - 9
A. (4x - 3)(2x + 3) B. (8x + 3)(x - 3) C. (4x + 3)(2x - 3) D. (8x - 3)(x + 3)
Mathematics
Write the numerator and denominator of the given fraction.
A. numerator: z; denominator: c
B. numerator: c; denominator z
C. numerator: zc; denominator: 1
D. numerator: 
; denominator: c
Mathematics
Solve the problem.A bag of marbles has twice as many blue marbles as green marbles, and the bag has at least 39 marbles in it. At least how many green marbles does it have?
A. at least 13 green marbles B. at least 14 green marbles C. at least 26 green marbles D. at least 20 green marbles
Mathematics