Find T, N, and B for the given space curve.r(t) = (t2 - 9)i + (2t - 5)j + 2k
A. T = 
i + 
j; N = 
i - 
j; B = -k
B. T = 
i + 
j; N = 
i - 
j; B = -k
C. T = 
i + 
j; N = 
i - 
j; B = k
D. T = 
i - 
j; N = - 
i - 
j; B = -k
Answer: B
Mathematics
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?
Round your answers to two decimal places.
?
A. 
and 
B. 
and 
C. 
and 
D. 
and 
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Graph the curve whose parametric representation is given. x = t2, y = 
+ 5; 0 ? t ? 4 
A. 
B. 
C. 
D. 
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Simplify the rational expressions.
A. 
B. 
C. 
D. 
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Use the figure to answer
If in the figure above, DE = 5 and CE = 2, find DC.
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