Use a half-angle formula to find the exact value of the expression.sin 
A. 
B. 
C. - 
D. - 
Answer: B
Mathematics
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Find the square root correct to the thousandths place.
A. 24.047 B. 578.000 C. 24.039 D. 24.042
Mathematics
Solve the problem.A collection of dimes is arranged in a triangular array, with 12 coins in the base row, 11 in the next, 10 in the next, and so forth. Find the value of the collection.
A. $15.60 B. $0.78 C. $7.80 D. $3.90
Mathematics
Calculate the limit algebraically.
?
?
A. -54 B. 243 C. 82 D. 81 E. 324
Mathematics
Solve the compound inequality. Express the solution using interval notation. Graph the solution set.x ? 2 or x ? 6
A. (2, 6)
B. (-2, 6)
C. [-6, -2]
D. (-?, 2] ? [6, ?)
Mathematics