Find the vertices of the hyperbola.y2 - x2 - 16x = 65
A. (-8, -2) and (-8, 2)
B. (-8, -1) and (-8, 1)
C. (8, -1) and (8, 1)
D. (8, -2) and (8, 2)
Answer: B
Mathematics
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Find the vector projv u.v = 3i - j + 3k, u = 2i + 10j + 11k
A. 
i - 
j + 
k
B. 
i + 
j + 
k
C. 
i - 
j + 
k
D. 
i + 
j + 
k
Mathematics
Subtract.12 - (-1)
A. -11 B. 13 C. 11 D. -13
Mathematics
Assume you have a digraph with 5 vertices (A, B, C, D, and E) and 9 arcs. A is incident from C, D, and E; B is incident to D and E and incident from C; D is incident to C and incident from E.How many cycles are there in the digraph that start and end at B?
A. 3 B. 0 C. 1 D. 2 E. none of these
Mathematics
Solve.y2 - x2 = 1x - 3 = y
A. 
B. 
C. 
D. 
Mathematics