Approximate the expression to the nearest thousandth.2.9(42) - 2(6) + 6
A. -32.6
B. 46.4
C. 34.4
D. 40.4
Answer: D
Mathematics
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Perform the operations.
A. 490 B. 4,900 C. 49 D. 0.49
Mathematics
Solve the inequality. Express your answer in set notation.x2 < 81
A. {x| x < -9 or x > 9} B. {x| 9 < x < 9} C. {x| -9 ? x ? 9} D. {x| x < 9}
Mathematics
Identify the interval where f is increasing or decreasing, as indicated. Express your answer in interval notation.f(x) = (x + 1)2 + 9; increasing
A. (-?, 0] B. (-?, -1] C. [9, ?) D. [-1, ?)
Mathematics
Simplify.(64 - 18) ? [(80 + 10 ÷ 5) - (6 ? 6 - 3 ? 3)]
A. 2494 B. 2530 C. 2587 D. 2630
Mathematics