Simplify, and write the answer using only positive exponents. Assume all variables represent nonzero numbers.
A. x24y-3
B. x8y9
C. x6y-1
D. x2y9
Answer: D
Mathematics
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A. 
B. 
C. 
D. 
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A. 1 B. -1 C. 2 D. 0
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Select the more reasonable temperature for the item.Room temperature20°C20°F
A. 20°F B. 20°C
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Find the root if it is a real number.
A. 10 B. -10 C. 32 D. 100
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