Use a Venn diagram to decide if the statement is true or false.B ? (A ? C) = (A ? B) ? (B ? C) 
A. True
B. False
Answer: A
Mathematics
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Use the given graph of f(x) = ax2 + bx + c to solve the specified inequality.f(x) ? 0
A. x ? 5 B. x ? 2 or x ? 5 C. 2 ? x ? 5 D. No solutions
Mathematics
Use De Moivre's theorem to evaluate the expression. Write the result in standard form.(-i)11
A. 1 B. -1 C. -i D. i
Mathematics
Find the mean for the group of data items. Round to the nearest hundredth, if necessary.10, 12, 8, 7, 6, 9, 11, 8
A. 10.14 B. 9 C. 8.88 D. 7.88
Mathematics
Perform the operation indicated.1.91 ÷ 5
A. 0.482 B. 0.0482 C. 0.382 D. 0.0382
Mathematics