Solve the inequality. Write the solution set in interval notation.x2 - 6x ? -8
A. [2, 4]
B. (-?, 2]
C. [4, ?)
D. (-?, 2] ? [4, ?)
Answer: D
Mathematics
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Evaluate the function for the given value.f(x) = 2x2 - 2x - 7; f(k - 1)
A. -6k2 + 2k - 3 B. 2k2 + 6k + 3 C. 2k2 + 6k - 3 D. 2k2 - 6k - 3
Mathematics
Fill in the blanks.142 = 
so 
= 14.
A. 14, 196 B. 196, 14 C. 196, 196 D. 28, 28
Mathematics
Determine two pairs of polar coordinates for the point with 0° ? ? < 360°.
A. (5, 30°), (-5, 210°) B. (5, 300°), (-5, 120°) C. (5, 150°), (-5, 330°) D. (5, 240°), (-5, 60°)
Mathematics
Perform the indicated operation. Express the solution in scientific notation.
A. 8 × 10-15 B. 4 × 10-15 C. 8 × 10-1 D. 4 × 10-1
Mathematics