Find the indicated roots. Write the answer in a + bi form.Fourth roots of -1 - 
i
A. 
, 
, 
, 
B. 
, 
, 
, 
C. 
, 
, 
, 
D. 
, 
, 
, 
Answer: C
Mathematics
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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°
Mathematics
Solve the problem.A golden rectangle has a longer side of length 100 ft. Which of the following numbers most closely represents the length of the shorter side of the rectangle?
A. 16.18 ft B. 50 ft C. 161.8 ft D. 61.8 ft E. none of these
Mathematics
Solve.-1.55(20) + 0.70x = 0.20(20 + x)
A. x = 60 B. x = 80 C. x = 35 D. x = 70
Mathematics
Graph the inequality.-4 < x ? 
A. 
B. 
C. 
D. 
Mathematics