Decide whether the limit exists. If it exists, find its value.lim f(x)x?1
A. -1
B. 0
C. Does not exist
D. 1
Answer: D
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Find the graph of the following ellipse.
?
?
A. ?
B. ?
C. ?
D. ?
Graph the ellipse and locate the foci.
+ 
= 1
A. foci at (0, 
) and (0, -
)
B. foci at (5, 0) and (-5, 0)
C. foci at (4, 0) and (-4, 0)
D. foci at (
, 0) and (-
, 0)
Solve the problem.The volume V (in cubic inches) of a cylindrical pipe with length 12 inches is given by V(r) = 12?r2, where r is the radius of the piston (in inches). If the radius is increasing with time t (in minutes) according to the formula r(t) = 
t2, t ? 0, find the volume V of the pipe as a function of the time t.
What will be an ideal response?
Multiply using the rule for the product of the sum and difference of two terms. Assume any variable exponents represent whole numbers.(8an - 13bn)(8an + 13bn)
A. 64a2n + 208anbn - 169b2n B. 64a2n - 169b2n C. 8a2n - 13b2n D. 64an - 169bn