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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Rewrite the expression in terms of exponentials and simplify the results.sinh (7 ln x)
A. 2x
B. 
C. 
D. 
Find the expected value.Mr. Cameron is sponsoring an summer concert. He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain. The weather bureau predicts the chance of rain is 0.34 for the day of the concert. An insurance company is willing to insure the concert for $150,000 against rain for a premium of $30,000. If he buys this policy, what are his expected earnings from the concert?
A. $180,000 B. $300,000 C. $270,000 D. $239,400
Determine whether the statement is true or false. Justify your answer.
?
A line with a slope of 
is steeper than a line with a slope of 
.
?
A. True. The slope with the smallest magnitude corresponds to the steepest line. B. False. The slope with the greatest magnitude corresponds to the steepest line.
Give the amplitude or period as requested.Amplitude of y = 5 cos 
x
A. 8?
B. 5
C. 
D. 