Find the LCD for the pair. Write the fraction pair as equivalent fractions with the LCD as their denominators.
, 
A. r(r + 9)2; 
, 
B. r(r + 9); 
, 
C. (r + 9)2; 
, 
D. r(r + 1)(r + 9); 
, 
Answer: A
Mathematics
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Determine convergence or divergence of the series.
A. Diverges B. Converges
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Decide if the number is rational or irrational.1.047
A. Rational B. Irrational
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Solve the absolute value equation.
+ 5 = 13
A. no solution
B. x = - 
, 
C. x = - 
, 
D. x = - 
, 
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Find the difference.18 - 
A. 17
B. 15
C. 18
D. 17
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