Convert the rectangular coordinates of the point to polar coordinates (r, ?) with r > 0 and 0 ? ? < 2?.(3, -3
)
A. 
B. 
C. 
D. 
Answer: A
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Graph the region that satisfies the constraints.Bubba's Computer World sells personal computers. To advertise its computers to target groups, they advertise with x one-minute spots on local television at a cost of $264 per minute, and y one-minute spots on radio, at a cost of $220 per minute. Research shows that they sell one computer for every 3 minutes of television advertising, and one computer for every 6 minutes of radio advertising. Suppose the company has at most $55,000 to spend on advertising and that they sell at least 50 computers per month from this advertising.
A. 
B. 
C. 
D. 
Choose the correct response.Suppose that x ounces of a 25% acid solution are mixed with y ounces of a 35% solution to obtain 71 ounces of a 32% solution. One equation in a system for solving this problem is 
Which of the following is the other equation?
A. 25x + 35y = .32(71) B. .25x + .35y = .32(71) C. 35x + 25y = 32 D. .35x + .25y = .32(71)
Multiply mentally.90 ? 4
A. 356 B. 94 C. 360 D. 364
Use the formula for the general term (the nth term) of a geometric sequence to find the indicated term of the sequence with the given first term, a1, and common ratio, r.Find a5 when a1 = 7, r = -3.
A. -1701 B. 567 C. 81 D. -567