Find all cube roots of the complex number. Leave answers in trigonometric form.4 - 4i
A. 
cis 100°, 
cis 220°, 
cis 340°
B. 
cis 60°, 
cis 180°, 
cis 300°
C. 
cis 80°, 
cis 200°, 
cis 320°
D. 
cis 100°, 
cis 220°, 
cis 340°
Answer: D
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Describe the graph of the polar equation. 8r cos ? + r sin ? = 5
A. Vertical line passing through (8, 0) B. Parabola with vertex (8, 5) opening upward C. Line with slope -8 and y-intercept (0, 5) D. Line with slope 5 and y-intercept (0, 8)
Solve.The equation y = 0.003x - 0.20 can be used to determine the profit y, in dollars, of producing x items. How many items x must be produced so the profit will be at least $1012?
A. {x? x ? 336,400} B. {x? 0 < x ? 337,399} C. {x? x ? 337,400} D. {x? x ? 337,267}
Solve the proportion.
= 
A. 6 B. 4 C. 3 D. 7
Convert as indicated. If necessary, round to two decimal places.520 milliliters to fluid ounces
A. 17.59 fl oz B. 135.2 fl oz C. 1,970.8 fl oz D. 15,376.4 fl oz