Find the indicated roots. Write the answer in trigonometric form.Fourth roots of 256(cos 300° + i sin 300°)
A. 4(cos 75° + i sin 75°), 4(cos 165° + i sin 165°), 4(cos 330° + i sin 330°), 4(cos 60° + i sin 60°)
B. 4(cos 150° + i sin 150°), 4(cos 240° + i sin 240°), 4(cos 330° + i sin 330°), 4(cos 60° + i sin 60°)
C. 4(cos 75° + i sin 75°), 4(cos 165° + i sin 165°), 4(cos 255° + i sin 255°), 4(cos 345° + i sin 345°)
D. 4(cos 300° + i sin 300°), 4(cos 390° + i sin 390°), 4(cos 480° + i sin 480°), 4(cos 210° + i sin 210°)
Answer: C
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Find the indicated probability. Round your answer to 6 decimal places when necessary.Two fair 6-sided dice are rolled. What is the probability that the sum of the two numbers on the dice is greater than 10?
A. 
B. 3
C. 
D. 
Round following numbers as indicated.11.2881 (nearest hundredth)
A. 11.288 B. 11.30 C. 11.287 D. 11.29
Solve the equation. Write the answer in a + bi form.x2 + 8 = 0
A. 
+ 
i, - 
- 
i
B. 2 + 2i, -2 - 2i
C. 2
i, -2
i
D. 2i, -2i
Solve the equation by factoring.x2 + 9x - 36 = 0
A. x = -12 or x = 3 B. x = -12 or x = 1 C. x = 12 or x = -3 D. x = 12 or x = 3