Perform the indicated operation and simplify.
+ 
A. 7
B. 
C. 
D. 
Answer: C
Mathematics
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Determine whether the statement is true or false.If n is a natural number and 8|n, then 16|n.
A. True B. False
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Find the LCD of the given fractions by prime factorization.
and 
A. 168 B. 224 C. 1344 D. 672
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Identify the equation without completing the square.4x2 - 2x + y + 4 = 0
A. ellipse B. hyperbola C. parabola D. not a conic
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Describe the graph of the polar equation. r2sin 2? = 42
A. Parabola centered at the origin opening to the right B. Hyperbola with asymptotes y = ±21x C. Parabola centered at the origin opening upward D. Hyperbola with the x- and y-axes as asymptotes
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