Solve the problem.To what new value should f(2) be changed to remove the discontinuity? f(x) = 
A. 0
B. -7
C. -6
D. 1
Answer: D
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Perform the indicated operations.-16
+ 2
A. 13
B. 19
C. -14
D. -18
Use implicit differentiation to find dy/dx and d2y/dx2.y2 - x2 = 9
A. 
= - 
; 
= 
B. 
= 
; 
= 
C. 
= 
; 
= 
D. 
= 
; 
= 
Use the counting principle to obtain the answer.A salesman packed 3 shirts and 6 ties. With one shirt, he could wear all 6 ties. With another shirt, he could wear 5 ties. With the third shirt, he could wear only 2 ties. How many different combinations did he have?
A. 13 B. 60 C. 32 D. 12
Solve the problem.From a boat on the river below a dam, the angle of elevation to the top of the dam is 
If the dam is 1,421 feet above the level of the river, how far is the boat from the base of the dam (to the nearest foot)?
A. 3,491 ft B. 3,471 ft C. 3,461 ft D. 3,481 ft