Describe the set of points (x, y, z) defined by the equation.y = 0
A. All points of the form (x, 0, z)
B. Only the point (0, 0, 0)
C. All points of the form (x, 0, 0)
D. All points of the form (0, 0, z)
Answer: A
You might also like to view...
Each of six decorators has to paint a room (walls only) and put a wallpaper border around the room at the ceiling. One gallon of paint covers 400 sq ft, and one roll of border contains five yards. Each decorator has one gallon of paint and three rolls of border.The list gives the names of each decorator and the size of the room. 
Give the names of the decorators who will have both enough paint and enough border for their rooms. (Assume a ceiling height of 8' for each room.)
A. {Rosa, Pedro} B. {Noriko, Sun Woo} C. {Mary, John} D. None
A coffee merchant sells two blends of coffee. Each pound of blend A contains 80% Mocha Java and 20 % Jamaican and sells for $2 a pound. Each pound of blend B contains 35% Mocha Java and 65% Jamaican and sells for $2.25 a pound. The merchant has available 1000 pounds of Mocha Java and 600 pounds of Jamaican. The merchant will try to sell the amount of each blend that maximizes her income. Let x be the number of pounds of blend A and y be the number of pounds of blend B. Since the merchant above has available 1000 pounds of Mocha Java, one inequality that must be satisfied is
A. 0.8x + 0.35y ? 1000. B. 0.8x + 0.35y ? 1000. C. 0.35x + 0.65y ? 1000. D. 0.8x + 0.2y ? 1000. E. none of these
Simplify. Assume that no denominator is zero and that 00 is not considered.
4
A. 
B. 
C. 
D. 
Find the domain of the function h.h(x) = 
A. {x| x is a real number and x ? -9 and x ? -6 and x ? 6 and x ? 0} B. {x| x is a real number and x ? -9 and x ? -6} C. {x| x is a real number and x ? 0} D. {x| x is a real number and x ? 9 and x ? 6}