State whether the vectors are parallel, orthogonal, or neither.v = i + 
j,
w = i - 4j
A. Orthogonal
B. Parallel
C. Neither
Answer: C
Mathematics
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Find the indicated derivative.Find y " if y = 2 sin x.
A. y " = 2 sin x B. y " = - 2 sin x C. y " = 2 cos x D. y " = 4 sin x
Mathematics
For the pair of functions, find the quotient 
(x) and give any x-values that are not in the domain of the quotient function.f(x) = x2 + 11x + 24, g(x) = x + 8
A. x + 3; x ? 8 B. x + 11; x ? 0 C. x + 8; x ? -3 D. x + 3; x ? -8
Mathematics
Graph the ellipse and locate the foci.
+ 
= 1
A. foci at (
, 0) and (-
, 0)
B. foci at (2
, 0) and (-2
, 0)
C. foci at (2
, 0) and (-2
, 0)
D. foci at (0, 2
) and (0, -2
)
Mathematics
Find the indefinite integral.
a. 
b. tanx + C
c. 
d. ?cotx + C
Mathematics