Evaluate the trigonometric function of the given quadrantal angle. If the value is undefined, write "undefined."cos 15?
A. 0
B. 1
C. undefined
D. -1
Answer: D
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Determine if the series converges absolutely, converges, or diverges.
A. converges absolutely B. diverges C. converges conditionally
Which property is being demonstrated?2 ? 0 = 0
A. Commutative Property of Multiplication B. Associative Property of Multiplication C. Distributive Property of Multiplication over Addition D. Multiplication Property of Zero
Solve the problem.The polynomial function 
gives the approximate alcohol level (in tenths of a percent) in a person's blood x hours after drinking about 8 ounces of 100-proof whiskey. What would the person's alcohol level be 6 hours after drinking? Give answer as a percent.
A. 2.04% B. 0.204% C. 2.16% D. 0.216%
Use the graph of f to determine the intervals where f is increasing and where f is decreasing.
A. increasing: (-?, ?); decreasing: never B. increasing: (-?, 0]; decreasing [0, ?) C. increasing: [0, ?); decreasing (-?, 0] D. increasing: never; decreasing: (-?, ?)