Evaluate the integral.
dx
A. 
- ln 
- 3 tan-1 x + 
ln (x2 + 1) + C
B. 
- 3 tan-1 x + 
ln (x2 + 1) + C
C. 
- ln 
- 5 tan-1 x + ln (x2 + 1) + C
D. 
- ln 
+ 
ln (x2 + 1) + C
Answer: A
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Write a positive or negative fraction to describe the situation.Rickey gained 
pound during summer vacation.
A. - 
B. 
C. - 
D. 
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Fill in the blank(s) with the appropriate word(s).
Find the probability.You are dealt two cards successively (without replacement) from a shuffled deck of 52 playing cards. Find the probability that both cards are black.
A. 
B. 
C. 
D. 