Evaluate the integral.
A. 
sin-1 
x + C
B. 
sec-1 
+ C
C. 
sec-1 
+ C
D. 
sec-1 
+ C
Answer: C
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Evaluate the integral. 
A. ln 
- 
+ C
B. 
- 5 sec -1 
+ C
C. 
- 5 sec -1 
+ C
D. ln 
- 
+ C
Solve the initial value problem.
= 10t + sec2 t, r(-?) = 2
A. r = 10t2 + tan t + 2 - 10?2 B. r = 5t2 + tan t + 2 - 5?2 C. r = 5t2 + cot t + 2 - 5?2 D. r = 10 + tan t - 8
Solve the problem.Find the missing length in the following right triangle. If necessary, round to the nearest tenth. 
A. 40 mi B. 20 mi C. 6.3 mi D. 10 mi
Solve the problem.The charges for renting a moving van are $65 for the first 40 miles and $7 for each additional mile. Assume that a fraction of a mile is rounded up. a. Determine the cost of driving the van 98 miles.b. Find a symbolic representation for a function f that computes the cost of driving the van x miles, where 
(Hint: express f as a piecewise-constant function.)
A. a. $471; b. f(x) =
B. a. $6776; b. f(x) =
C. a. $1031; b. f(x) =
D. a. $471; b. f(x) =