Compute the unit binormal vector and torsion of the curve. r(t) = 
A. B(t) = 
, ? = 0
B. B(t) = 
, ? = 0
C. B(t) = 
, ? = 1
D. B(t) = 
, ? = 1
Answer: B
Mathematics
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Simplify.(9y4 - 6y2) + (8y4 - 5y2)
A. 17y8 - 11y4 B. 6y12 C. 17y4 - 11y2 D. 6y6
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Simplify the expression.16-7/4
A. -16,384
B. 
C. -128
D. - 
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Solve the problem.The number G of gears a machine can make varies directly as the time T it operates. If it can make 3965 gears in 8 hours, how many gears can it make in 15 hours?
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