Find all cube roots of the complex number. Leave answers in trigonometric form.-3
+ 3i
A. 
cis 50°, 
cis 170°, 
cis 290°
B. 
cis 70°, 
cis 190°, 
cis 310°
C. 
cis 70°, 
cis 190°, 
cis 310°
D. 
cis 50°, 
cis 170°, 
cis 270°
Answer: A
Mathematics
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Find the standard deviation. Round to one more place than the data.19.6, 12.6, 38.9, 31.8, 22.5, 21.4
A. 4031.6 B. 9.38 C. 35.4 D. 3591.7
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Graph.f(x) = 5x + 2
A. 
B. 
C. 
D. 
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Multiply.
A. 623,960 B. 624,960 C. 634,960 D. 625,060
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Solve using Cramer's rule. 4a- 4c = 4 3a + 7b + 2c = 86 2a - 4b= -26
A. (5, 9, 4) B. (9, 4, 9) C. (6, 7, 4) D. (5, -9, -4)
Mathematics