State the domain of the rational function.f(x) = 
A. (-?, 16) ? (16, ?)
B. (-?, - 8) ? (- 8, 8) ? (8, ?)
C. (-?, 8) ? (8, ?)
D. (-?, - 16) ? (- 16, 16) ? (16, ?)
Answer: C
Mathematics
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Add. Do not use a number line except as a check.-76 + 49
A. 125 B. -27 C. -125 D. 27
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Factor the difference of squares. If the polynomial cannot be factored, write "prime."4x2 + 9
A. (2x + 3)2 B. prime C. (2x - 3)2 D. (2x + 3)(2x - 3)
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Rationalize the denominator. Assume that all variables represent positive real numbers.- 
A. -3
B. - 
C. -40
D. - 
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Solve the quadratic inequality by any method. Write your answer in interval notation.-x2 ? 6
A. (-?, ?)
B. (-?, 0] ? [
, ?)
C. No solutions
D. (-?, 0)
Mathematics