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
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Use your calculator to perform the indicated operations. Give as many digits in your answer as shown on your calculator display.
A. 1.43029405 B. 8.56154192 C. 14.66 D. 2.36059126
Find the area of the specified region.Inside the smaller loop of the limacon r = 3 + 6 sin ?
A. 9?
B. 
(2? - 3
)
C. 
D. 3(3
- ?)
Solve the problem.An artifact is discovered at a certain site. If it has 77% of the carbon-14 it originally contained, what is the approximate age of the artifact to the nearest year? (carbon-14 decays at the rate of 0.0125% annually.)
A. 908 yr B. 1840 yr C. 6160 yr D. 2091 yr
Find the inverse of the invertible matrix.
A. 
B. 
C. 
D. 