Solve the compound inequality.x - 9 ? -6 or x - 9 ? 6
A. (-?, ?)
B. (-?, 3] ? [15, ?)
C. (-?, 15]
D. [3, 15]
Answer: A
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Find the domain of the function h.h(x) = 
A. {x| x is a real number and x ? 0 and x ? 3 and x ? 6 and x ? 4} B. {x| x is a real number and x ? 0 and x ? -6 and x ? -4} C. {x| x is a real number and x ? 0 and x ? 6 and x ? 4} D. {x| x is a real number and x ? 3 and x ? 6 and x ? 4}
Find the requested value.f(x) = -3x2 - 4, g(x) = x - 1Find f(-4) - g(-4).
A. -49 B. -47 C. -55 D. 56
Write the word phrase in symbols, using x as the variable.A number subtracted from -9
A. -9 - x B. x - (-9) C. 9 - x D. x - 9
Solve the system using matrices. If there is no solution or if there are infinitely many solutions and a system's equations are dependent, so state.
A. {(5, -1, 2)} B. infinitely many solutions; dependent equations C. no solution or ? D. {(5, 2, -1)}