Find the unit tangent vector of the given curve.r(t) = (10 - 2t)i + (2t - 8)j + (7 + t)k
A. T = 
i - 
j - 
k
B. T = - 
i + 
j + 
k
C. T = 
i - 
j - 
k
D. T = - 
i + 
j + 
k
Answer: B
Mathematics
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Find the x- and y-intercepts of the graph.
A. (1, 0), (0, 7) B. (-1, 0), (0, 7) C. (-7, 0), (0, 7) D. (-1, 0), (0, -7)
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Provide an appropriate response.Find the mean of the following (round to nearest tenth): 53, 89, 72, 16, 59
Fill in the blank(s) with the appropriate word(s).
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Verify that the equation is an identity.csc(s + t) = 
What will be an ideal response?
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Use the given conditions to write an equation for the line in point-slope form.Slope = 
, passing through (3, 2)
A. y = 
x + 3
B. y - 2 = 
(x - 3)
C. y + 2 = 
(x + 3)
D. x - 2 = 
(y - 3)
Mathematics