Write the complex number in rectangular form.6(cos 330° + i sin 330°)
A. 3
+ 3i
B. 3
- 3i
C. -3
+ 3i
D. -3
- 3i
Answer: B
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Solve the problem.Suppose that a radio transmission pattern can be modeled by 
for 
where the units are miles. Determine how far the signal reaches to the east, assuming that east is represented by the direction of the positive 
A. 120 miles B. 28,800 miles C. 14,400 miles D. 240 miles
Fill in the blank with one of the words or phrases listed below.
Two numbers are 
of each other if their product is 1.
A. mixed number B. reciprocals C. composite number D. undefined
Use the distributive property to rewrite the following expressions; then simplify as necessary.7(7a+ 8b + 2)
A. 49a + 8b + 2 B. 49a + 56b + 2 C. 49a + 8b + 14 D. 49a + 56b + 14
Solve the problem. Round your answer to the nearest tenth.The roof of a building is in the shape of the top half of the hyperbola y2 - x2 = 56, where x and y are in meters. Refer to the figure and determine the distance, w, between the two outside walls. 
a = 8.0 m b = 8.0 m
A. 11.0 m B. 8.0 m C. 2.9 m D. 5.7 m