Write the complex number in rectangular form.
cis 270°
A. -i
B. -i
C. -2i
D. -
Answer: A
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Use set statements to write a description of the shaded area. Use union, intersection and complement as necessary.
A. A - B B. B - A' C. A ? B' D. B ? A'
Simplify. Assume that all variables represent positive numbers.
A. 5x2
B. 9x
C. 9
D. 405x
A firm would conduct operating breakeven analysis primarily to determine the:
A. minimum value of assets that it should hold to achieve profitability. B. maximum amount of the total assets that should be financed with debt. C. minimum earnings that should be retained and the earnings that should be paid out as dividends. D. level of capacity utilization required to achieve its forecasted sales level. E. level of sales a new product must achieve to be profitable.
Find an equation of variation for the given situation.y varies inversely as the square of x, and y = 0.17 when x = 0.8
A. y = .57x2
B. y = 
C. y = 
D. y = 