Find the value of the expression.Let logb A = 5 and logb B = -4. Find logb B2.
A. -8
B. -16
C. 10
D. 16
Answer: A
Mathematics
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Solve.5% of 500 is what?
A. 2.5 B. 0.25 C. 250 D. 25
Mathematics
Determine the domain and the range of the function.f(x) = -x2 + 2x
A. domain: {x|x? -1} range: {y|y ? 1} B. domain: {x|x ? 1} range: {y|y ? 1} C. domain: all real numbers range: {y|y ? 1} D. domain: all real numbers range: {y|y ? -1}
Mathematics
Evaluate.(-4x)2 for x = 2
A. -64 B. -16 C. 64 D. 16
Mathematics
Write the inequality in interval notation.x > 20 or x ? 9
A. [9, 20) B. (-?, 9] ? (20, ?) C. (-?, 9) ? [20, ?) D. (-?, 20) ? [9, ?)
Mathematics