Evaluate the following expression.
?
?
A. 32
B. 20
C. 19
D. 5
E. 26
Answer: A
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Evaluate the integral by making a substitution and then using a table of integrals. 
A. 9 sin-1
- 
+ C
B. 
- 3 ln
+ C
C. 9 sin-1
- 
+ C
D. 9 sin-1
+ x
+ C
Solve.A mechanic has logged the following number of hours in training apprentices during 15 training sessions.7.259.506.755.756.506.507.258.007.258.509.257.758.759.256.50(a) Find the mean for the hours logged.(b) Find the median for the hours logged.(c) If the mechanic earns $38 per hour to train an apprentice, how much does he earn for the median hours logged?
A. (a) 7.25, (b) 8.00, (c) $294.50 B. (a) 7.65, (b) 7.25, (c) $275.50 C. (a) 7.35, (b) 7.25, (c) $275.50 D. (a) 7.85, (b) 7.75, (c) $294.50
The graph of a function is given. Determine whether the function is increasing, decreasing, or constant on the given interval.(2.2, 5) 
A. decreasing B. constant C. increasing
Simplify the square root.
A. |x + 7| B. |x - 7| C. x - 7 D. (x - 7)2