Find the exact value by using a half-number identity.sin 
A. 
B. 
C. 
D. 
Answer: B
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Evaluate the integral by using a substitution prior to integration by parts.
A. 
[cos (ln x) + sin (ln x)] + C
B. x[cos (ln x) + sin (ln x)] + C
C. 
[cos (ln x) - sin (ln x)] + C
D. x cos (ln x) + sin (ln x)+ C
Solve.The sum of three numbers is 5. The sum of the first and second numbers is 3, and the first number is one more than three times the third number. How many of the numbers are even numbers?
A. 1 B. None C. 2 D. 3
Solve. If necessary, round answers to the nearest hundredth.15 students were asked how much cash they had with them and the results were recorded.31, 34, 24, 19, 0, 5, 2, 58, 105, 29, 24, 87, 63, 17, 20How many students had less cash than the mean?
A. 8 B. 4 C. 11 D. 10
Find the indicated sum.
A. 108 B. 54 C. 36 D. 72