Evaluate the sum.
?
?
A. -27
B. 42
C. -26
D. -6
E. 6
Answer: D
Mathematics
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Rationalize the denominator.
A. 1
B. 
C. 
D. 
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Find the root. If the root is not a real number, so state.
A. 100 B. 31 C. 10 D. not a real number
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The rodent population in a city is currently estimated at 20,000. If it is expected to double every 3 years, when will the population reach 490,000? Round your answer to the nearest tenth of a year. ?
A. 20.3 years B. 20.1 years C. 13.8 years D. 16.9 years E. none of these
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Find the product.(n + 3)2
A. n2 + 9 B. n + 9 C. 9n2 + 6n + 9 D. n2 + 6n + 9
Mathematics