Use a double-angle identity to evaluate the expression.cos 
A. - 
B. 
C. 
D. - 
Answer: A
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Solve the problem.The following table shows the rate of water flow (in gal/min) from a stream into a pond during a 30-minute period after a thunderstorm. Use Simpson's Rule to estimate the total amount of water flowing into the pond during this period. Round your answer to the nearest gallon.
A. 7,733 gal B. 8,850 gal C. 7,050 gal D. 7,725 gal
Find the specified maximum and / or minimum.Find the maximum and minimum of 
subject to 
, 
, 
.
A. 280, 36 B. 280, 220 C. 60, 36 D. 220, 24
Use grouping symbols to clarify the meaning of the symbolic statement.p ? q ? p ? q ? ~p
A. (p ? q) ? [(p ? q) ? ~p] B. p ? (q ? p) ? (q ? ~p) C. (p ? q) ? (p ? q) ? ~p D. [(p ? q) ? p] ? (q ? ~p)
Solve the problem.Express the area of the following parallelogram as an algebraic expression and then simplify.
A. A = 4x4 - 3x9 B. A = 4x20 - 3x4 C. A = 4x9 - 3 D. A = 4x9 - 3x4