Solve.x2 + 6x + 9 ? 0
A. [3, ?)
B. {-3}
C. (-?, -3] ? [-3, ?)
D. {3}
Answer: B
Mathematics
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Find the integral.
dx
A. 
+ C
B. (cos-1 x)5 + C
C. 4(sin-1 x)3 + C
D. 
+ C
Mathematics
Solve the inequality.64 - x2 ? 0
A. x ? -32 or x ? 32 B. x ? 8 C. x ? -8 or x ? 8 D. -8 ? x ? 8
Mathematics
Solve the equation by first clearing decimals. 1.3x + 2.2 = 0.5x + 1.48
A. -0.89 B. 1.111 C. -0.891 D. -0.9
Mathematics
The graph of a trigonometric function of the form y = A sin (Bx) or y = A cos (Bx) for B > 0 is given. Determine the equation of the function represented by the graph.
A. y = 4 cos 
x
B. y = 2 cos 
x
C. y = 2 cos 4x
D. y = 4 cos 2x
Mathematics