Determine whether the set is well defined or not.{x : x is a tennis player who has won at Wimbledon}
A. Well defined
B. Not well defined
Answer: A
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Evaluate the expression x - y for the given values of the variables.x = 4.680, y = -0.84
A. 5.62 B. -3.84 C. 5.52 D. 3.84
A tank initially contains 150 lb of salt dissolved in 450 gal of water. Saltwater containing 2 lb of salt per gal enters the tank at the rate of 5 gal per min. The mixture (kept uniform by stirring) is removed at the same rate. How many pounds of salt are in the tank after 2 hours?
What will be an ideal response?
Use the elimination method by addition to find the solution for the following system.
A. x = 0, y = 6 B. x = 0, y = 7 C. x = -1, y = 7 D. The system is inconsistent.
Determine the slope and y-intercept. Then use the slope and y-intercept to graph the equation by hand.y = 
x - 1
A. slope: 
, y-intercept: (0, 0)
B. slope: 
, y-intercept: (0, -1)
C. slope: - 
, y-intercept: (0, -1)
D. slope: 
, y-intercept: (0, 1)