Find the domain of the rational expression.
A. {x|x is a real number and x ? 7}
B. {x|x is a real number}
C. {x|x is a real number and x ? 3}
D. {x|x is a real number and x ? 3 and x ? 7}
Answer: B
Mathematics
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A. 
B. 
C. 
D. 
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Use a vertical format to find the product.7y2 - 7y + 6
A. -14y3 - 84y2 + 12y B. -14y3 + 14y2 - 12y C. 35y3 + 14y2 - 19y - 42 D. 35y3 - 84y2 + 79y - 42
Mathematics
Add the integers.-3 + 4
A. -7 B. -1 C. 1 D. 7
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Factor by any method.9a3 - 16a
A. a(9a + 1)(a - 16) B. a(3a - 4)2 C. a(3a + 4)(3a - 4) D. (3a2 + 4)(3a - 4)
Mathematics