Form an equivalent expression by rationalizing the denominator.
A. 13
B. 13
C. 1
D. 
Answer: D
Mathematics
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Use the histograms shown to answer the question.
Can the number of A defects or the number of B defects be described using the normal distribution?
A. The second is normal, but the first is not normal. B. Both are normal. C. The first is normal, but the second is not normal. D. Neither is normal.
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Add or subtract.(2 - 6i) + (6 + 2i)
A. -8 + 4i B. 8 - 4i C. 8 + 4i D. -4 + 8i
Mathematics
Choose the most reasonable metric length unit. Choose from km, m, cm, and mm.Marian drove 331 
on vacation.
A. m B. km C. cm D. mm
Mathematics
Solve the problem.Approximate the area under the graph of f(x) = 2x3 - 1 from 1 to 6 by partitioning the interval into 5 subintervals of equal length and choosing t to be the right endpoint.
A. 800 B. 825 C. 850 D. 875
Mathematics