Write the complex number in polar form. Express the argument ? in degrees, with 0 ? ? ? 360°.-2 - 2i
A. 4(cos 240° + i sin 240°)
B. 2(cos 240° + i sin 240°)
C. 4(cos 290° + i sin 290°)
D. 4(cos 180° + i sin 180°)
Answer: A
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Identify the conic by writing the equation 
in standard form.
a. 
hyperbola
b. 
hyperbola
c. 
ellipse
d. 
Provide an appropriate response.Solve the following system of equations by first solving Equation (1) for x and then substituting for x in Equation (2). Then solve the system again by first solving Equation (1) for 2y and substituting for 2y in Equation (2). Which procedure do you prefer? Explain why you answered as you did.?x + 2y = 6(1)3x + 2y = 4(2)
What will be an ideal response?
Find the indicated intercept(s) of the graph of the function.x-intercepts of f(x) = 
A. (-9, 0) B. (0, 0), (-9, 0) C. (9, 0) D. (0, 0), (9, 0)
Solve the problem.Computer sales in the United States have increased since 1992. The function 
can be used to approximate the number of computer sales during the years 1990-2000 where x is the number of years after 1990 and f(x) is the computer sales (in millions). Approximate the number of computers sold in 1993. Round the answer to the nearest tenth of a million.
A. 8.3 million B. 6.3 million C. 7.3 million D. 6.9 million