Find zw or 
as specified. Leave your answer in polar form.z = 10(cos 30° + i sin 30°)w = 5(cos 10° + i sin 10°)Find 
.
A. 2(cos 3° + i sin 3°)
B. 2(cos 20° + i sin 20°)
C. 5(cos 20° + i sin 20°)
D. 5(cos 3° + i sin 3°)
Answer: B
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Obtain the five-number summary for the given data.The normal annual precipitation (in inches) is given below for 21 different U.S. cities.
A. 5.1, 13.650, 22.4, 30.725, 51.7 B. 5.1, 14.20, 21.50, 31.80, 51.7 C. 5.1, 14.20, 22.4, 31.80, 51.7 D. 5.1, 13.650, 21.50, 30.725, 51.7
Solve the problem.It is 4.7 km from Lighthouse A to Port B. The bearing of the port from the lighthouse is N73°E. A ship has sailed due west from the port and its bearing from the lighthouse is N31°E. How far has the ship sailed from the port? Round your answer to the nearest 0.1 km.
A. 3.7 km B. 3.1 km C. 3.5 km D. 2.7 km
Collect like terms.-2x + 1.9y - 1.6x + 9y
A. -3.6x + 1.9y + 9 B. -3.6x + 10.9y C. 10.9x - 3.6y D. -2x - 1.6x + 1.9y + 9y
The histogram shows the scores of each participant in a game from a total of 100 participants. Use the histogram to answer the question. 
How many more participants scored 80-99 than 0-19?
A. 32 participants B. 16 participants C. 4 participants D. 10 participants