Solve.
log2 x + 8 = 7
A. 4
B. -4
C. - 
D. 
Answer: D
Mathematics
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L'Hopital's rule does not help with the given limit. Find the limit some other way.
A. 0 B. 4 C. ? D. 16
Mathematics
Solve the problem.The disk (x - 5)2 + y2 ? 4 is revolved about the y-axis to generate a torus. Find its volume. (Hint: 
= 2?, since it is the area of a semicircle of radius 2.)
A. 20?2 B. 40?2 C. 20? D. 10?2
Mathematics
Add or subtract. Assume all variables represent nonnegative real numbers.3
+ 
A. 9
B. 4
C. 3
+ 
D. 6
Mathematics
Use the graph of the rational function f(x) to complete the statement.The equation of the horizontal asymptote is 
.
A. y = 5 B. y = 4 C. y = -4 D. y = 1
Mathematics