Express in standard notation.8(cos 30° + i sin 30°)
A. 
+ 
i
B. 4 + 4
i
C. 4
+ 4i
D. 
+ 
i
Answer: C
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Solve the problem.In how many ways could a group of fourteen people be divided into four groups containing respectively two, three, four, and five people?
A. 66,380,562,248 B. 2,522,520 C. 12,612,600 D. 87,178,291,200
Suppose a traveler wanted to visit a museum, an art gallery, and the state capitol building. 45-minute tours are offered at each attraction hourly from 10 a.m. through 3 p.m. (6 different hours). Solve the problem, disregarding travel time.In how many ways could the traveler schedule two of the three tours in one day?
A. 180 B. 120 C. 36 D. 30
Solve by the quadratic formula. If there are no real roots, say so.x2 = 9 - 4x
A. -1 ± 
B. 2 + 
C. -2 ± 2
D. -2 ± 
Find the exact value of the trigonometric expression without the use of a calculator.sin 265° cos 25° - cos 265° sin 25°
A. - 
B. 
C. - 
D. 