Solve the problem.The surface area a of a cylinder is shown in the graph below. What is the radius r if the surface area is 20 m2?
A. 0.8 m
B. 1.0 m
C. 1.2 m
D. 0.6 m
Answer: A
Mathematics
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Evaluate the integral.
A. 
+ 
ln
+ C
B. - 
- 
tan-1
+ C
C. 
- 
tan-1
+ C
D. 
+ 
tan-1
+ C
Mathematics
The tables show the operations ? and ? on the set {a, b, c, d, e}. 
Replace x with a, b, c, d, or e to form a true statement. x ? (d ? e) = a
A. a B. b C. d D. c
Mathematics
The median for this set of numbers: 1.5cc, 4.0cc, 6.5cc, 8.0cc, 8.0cc, 8.0cc, 10.5cc, 12.0cc, 12.0cc; is
A. 8.0cc B. 8.0cc and 12.0cc C. 7.8cc D. none
Mathematics
Solve the problem.One card is selected from a deck of cards. Find the probability of selecting a red card or a card less than 4. (Note: The ace is considered a low card.)
A. 
B. 
C. 
D. 
Mathematics