Use the half-angle formulas to simplify the given expression.
A. cos 76?
B. sin 19?
C. sin 76?
D. cos 19?
Answer: D
Mathematics
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Solve.The following table lists the number of students enrolled in ABC High School for a four year period. 
What was the enrollment in 2011?
A. 414 B. 405 C. 407 D. 386
Mathematics
Use a vertical format to add the polynomials.4x3?+ 7x + 9
A. 13x3 + 16x2 + 9x + 3 B. 4x3 + 16x2 + 16x + 3 C. 4x3 + 9x2 + 14x + 12 D. 13x3 + 14x + 12
Mathematics
Translate to an equation. Do not solve.What percent of 36 is 9?
A. t × 36% = 9 B. t = 36 × 9 C. t = 36% × 9 D. t × 36 = 9
Mathematics
Find all solutions in radians using exact values only.
?
What will be an ideal response?
Mathematics