Sketch a vector v that models the given situation and express v as 
. A 50-mile-per-hour northeast wind N
S
A.
v =  |
B.
v =  |
C.
v =  |
D.
v =  |
Answer: A
Mathematics
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Find the curvature of the curve r(t) = 3 sin4ti+3 cos4tj+3tk.
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Write the expression in standard form.7.0686 × 10-7
A. 0.00000070686 B. -70,686,000 C. 0.000000070686 D. 0.0000070686
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Graph.9x2 - y2 = 36
A. 
B. 
C. 
D. 
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