Find the determinant.det 
A. 18
B. 15
C. 0
D. 9
Answer: A
Mathematics
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Factor by grouping.x3 + 8x2 - 10x - 80
A. (x + 8)(x3 - 10x) B. (x - 8)(x2 - 10) C. (x + 8)(x2 - 10) D. (x2 + 8)(x - 10)
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Write the number in scientific notation.2,070,000
A. 2.7 × 106 B. 2.07 × 104 C. 2.07 × 105 D. 2.07 × 106
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Find the domain of f.f(x) = 
A. {x | x ? 16} B. {x | x ? ±10} C. {x | x ? ±16} D. {x | x ? 10}
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Factor completely. If the polynomial is prime, so state.3x2 + 13x + 14
A. (x + 7)(3x + 2) B. (x + 2)(3x + 7) C. (x + 2)(2x + 7) D. (x - 2)(3x - 7)
Mathematics