Solve the problem.If tan ? = 
, and ? terminates in quadrant III, then find cos 2?.
A. 
B. 
C. - 
D. - 
Answer: B
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Use U = universal set = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}, A = {1, 2, 3, 5, 8}, B = {2, 3, 5, 7}, and C = {1, 4, 9} to find the set.B ? C
A. { } B. {0} C. {1, 2, 3, 5, 7, 9} D. {1, 2, 3, 4, 5, 7, 9}
Find the requested term in the sequence.The 10th term in 13, 19, 20, 21, 22, . . .
A. 28 B. 27 C. 26 D. 29
Solve the problem.The temperature at 5 p.m. on January 27 was -5° Fahrenheit. By 8 p.m. the temperature had risen 25 degrees. Find the temperature at 8 p.m.
A. 20°F B. -30°F C. 30°F D. -20°F
Factor the polynomial f(x). Then solve the equation f(x) = 0.f(x) = x4 - 4x3 - 7x2 + 22x + 24
A. (x - 2)(x - 3)(x - 1)(x - 4); 2, 3, 1, 4 B. (x + 2)(x + 3)(x + 1)(x - 4); -2, -3, -1, 4 C. (x + 2)(x - 3)(x + 1)(x - 4); -2, 3, -1, 4 D. (x - 2)(x - 3)(x + 1)(x - 4); 2, 3, -1, 4