Determine whether the vectors u and v are parallel, orthogonal, or neither.u = 
, v = 
A. Orthogonal
B. Neither
C. Parallel
Answer: C
Mathematics
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The function f is one-to-one. Find its inverse.f(x) = x2 - 6, x ? 0
A. f-1(x) = 
+ 6, x < 0
B. f-1(x) = 
+ 6, x ? 0
C. f-1(x) = 
, x ? 6
D. f-1(x) = 
, x ? -6
Mathematics
Solve using addition/subtraction
Mathematics
Solve the problem.Within a group of n people, the number of possible handshakes, N, is given by N = 
(n2 - n). How many handshakes are possible at a meeting if 30 people are present?
A. 420 B. 870 C. 435 D. 465
Mathematics
Find a general term an for the arithmetic sequence.a1 = 4, d = 2
A. an= 4n B. an= 2n + 2 C. an= 2n + 4 D. an= n + 2n
Mathematics