Classify the following as true or false.The sum of a rational number and an irrational number could be rational.
A. True
B. False
Answer: B
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Solve by the substitution method. 3x - 13 = -y2x + 9y = -8
A. {(-5, -2)} B. {(-5, 2)} C. {(5, 2)} D. {(5, -2)}
Solve the problem. Use a calculator with an LN or a LOG key.An earthquake was recorded with an intensity which was 
times more powerful than a reference level earthquake, or 
What is the magnitude of this earthquake on the Richter scale (rounded to the nearest tenth)? The magnitude on the Richter scale of an earthquake of intensity I is 
A. 3.7 B. 4.7 C. 0.5 D. 10.8
List all subsets or determine the number of subsets as requested.Determine the number of subsets of {1, 2, 3, ..., 6}
A. 60 B. 16 C. 64 D. 128
Translate the expression into a word phrase.
k
A. The quotient of 
and k
B. 
increased by k
C. k more than 
D. The product of 
and k