Evaluate the integral by making a substitution (possibly trigonometric) and then applying a reduction formula.
A. 
[csc(et - 2) cot(et - 2) + ln
] + C
B. 
[csc(et - 2) cot(et - 2) - ln
] + C
C. - 
[csc(et - 2) cot(et - 2) + ln
] + C
D. - 
[csc(et - 2) cot(et - 2) - ln
] + C
Answer: C
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Answer the question.A small company allows its employees to use "flex-time" to decide whether to work 
or 
Of its 57 employees, 17 choose to work 
17 are parents with small children who choose to work 
and 23 are students
who work 
after school and on Sundays. Which measure of central tendency would be best to use to determine the average number of employees?
A. Median
B. Mode
C. Weighted mean
D. Mean
Graph the functions on the same grid.y = 4x - 1 and y = 
+ 
A. 
B. 
C. 
D. 
Solve.A plane makes a 240-mile trip against a head wind in 1 hour and 30 minutes and returns, with a tail wind of the same speed, in 1 hour. What is the speed of the wind?
A. 200 mph B. 160 mph C. 80 mph D. 40 mph
Write the linear system corresponding to the reduced augmented matrix.
A. x1 = -4, x2 = t + 6, x3 = t for any real number t B. No Solution C. x1 = 4, x2 = -t + 6, x3 = t for any real number t D. x1 = 4, x2 = t + 6, x3 = 0