Solve the system.
A. (3, 5, 2)
B. (3, 2, 5)
C. (2, 5, 5)
D. (2, 5, 3)
Answer: D
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Find the domain and range and describe the level curves for the function f(x,y).f(x, y) = ex+y
A. Domain: all points in the first quadrant of the xy-plane; range: real numbers z > 0; level curves: lines x + y = c B. Domain: all points in the first quadrant of the xy-plane; range: all real numbers; level curves: lines x + y = c C. Domain: all points in the xy-plane; range: all real numbers; level curves: lines x + y = c D. Domain: all points in the xy-plane; range: real numbers z > 0; level curves: lines x + y = c
Graph the function. Then identify its domain and range.f(x) = -|x + 3| 
A. Domain: (-?, ?); range: [0, ?)
B. Domain: (-?, ?); range: (-?, 0]
C. Domain: (-?, ?); range: (-?, 3]
D. Domain: (-?, ?); range: (-?, 0]
Write the set in set-builder notation.{January, February, March, April, May, June, July, August, September, October, November, December}
A. {x|x is a year} B. {x|x is a month} C. {x|x is a day of the week} D. {x|x is a week}
Express the product as a sum containing only sines or cosines.cos(3?) cos(2?)
A. 
[ cos ? + cos(5?)]
B. cos2(6?2)
C. 
[cos(5?) - cos ?]
D. 
[cos(5?) - sin ?]