Solve the equation by completing the square.x2 + 3x - 9 = 0
A. 
B. 
C. {-3 ± 3
}
D. 
Answer: A
Mathematics
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Find the torsion of the space curve.r(t) = (cosh t)i + tj + (sinh t)k
A. ? = - 
B. ? = - 
C. ? = 
D. ? = 0
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Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. -14 B. -5 C. 0 D. 1
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Complete.30 ft2 = _______ in.2
A. 720 B. 2.5000 C. 360 D. 4320
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Find the perimeter. Use 3.14 for ? when needed.
A. 20.56 cm B. 6.28 cm C. 12.56 cm D. 16.56 cm
Mathematics