Complete the square in x or y to find a Cartesian equation of the form y = C(x - h)2 + k or x = C(y - h)2 + k for the given equation.x2 + 4x + 7y - 17 = 0
A. y = - (x - 2)2 + 3
B. y = - (x + 2)2 + 3
C. y = - (x + 2)2 - 3
D. y = (x - 2)2 + 3
Answer: B
Mathematics
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Factor the polynomial completely.64x2 - 144xy + 81y2 - 49
A. (8x - 9y - 7)2 B. (8x + 9y + 7)(8x - 9y - 7) C. (8x - 9y + 7)2 D. (8x - 9y + 7)(8x - 9y - 7)
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Find the domain of x in the expression.
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Change 247,000 kg to metric tons.
A. 247,000 metric tons B. 2,470 metric tons C. 24.7 metric tons D. 247 metric tons E. 24,700 metric tons
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