Let 
be an arbitrary operation. Describe the operation 
for the problem.
?
?
A. ab + 1
B. a + b
C. ab
D. 2a - b
E. a + b + 1
Answer: D
Mathematics
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Tell which set or sets the number belongs to: natural numbers, whole numbers, integers, rational numbers, irrational numbers, and real numbers.17
A. whole, rational, real B. integers, rational, real C. natural, whole, integers, rational, real D. real
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Factor out the GCF from the polynomial.18y3 - 4y2 + 10y
A. 2y(9y2 - 2y + 5) B. 2(9y3 - 2y2 + 5y) C. 2y(9y3 - 2y2 + 5y) D. y(18y2 - 4y + 10)
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Add the integers.34 + (-52)
A. -86 B. 18 C. -18 D. 86
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Replace the ? with the appropriate symbol, + or -, to describe an increase or a decrease.The Dow Jones Industrial Average gains 17 points. 
17 points.
A. + B. -
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