Use a calculator to estimate the limit.
A. 0
B. Does not exist
C. 4
D. 2
Answer: C
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Find a polynomial function of lowest degree with rational coefficients that has the given numbers as some of its zeros.2 - i, -6
A. f(x) = x3 + 2x2 - 19x + 30 B. f(x) = x3 - 2x2 - 19x - 30 C. f(x) = x3 - 2x2 - 19x + 24 D. f(x) = x3 + 4x2 - 20x + 30
The position vector of a particle is r(t). Find the requested vector.The velocity at t = 
for r(t) = 4sec2(t)i - 10tan(t)j + 6t2k
A. v
= 16i - 20j + 3?k
B. v
= 16i + 20j - 3?k
C. v
= -20j - 3?k
D. v
= -20j + 3?k
Find the volume of the described solid.The solid lies between planes perpendicular to the x-axis at x = -2 and x = 2. The cross sections perpendicular to the x-axis are circles whose diameters stretch from the curve 
to the curve 
A. 
?2
B. 81?
C. 81?2
D. 
?2
Determine whether the relation is a function.
A. Function B. Not a function