Solve the problem.The sum of 81 times a number and the reciprocal of the number is positive. Find the numbers which satisfy this condition.
A. any number between - 
and 
B. any number greater than 
C. any number between 0 and 
D. any number greater than 0
Answer: D
Mathematics
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Which number is larger?-30.07, -30.1
A. -30.07 B. -30.1
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Solve the exponential equation. For irrational solutions, round to four decimal places.(83x)(2x + 1) = 5
A. {0.1652} B. {0.1322} C. {0.5805} D. {0.3305}
Mathematics
Find the product.(3a)(7a2)
A. 3a + 7a2 B. 21a3 C. 10a3 D. 21a4
Mathematics
Provide an appropriate response.Solve: 
= 5.2, rounding to the nearest tenth.
A. 0.3 B. 3.8 C. 3.7 D. 0.27
Mathematics