Solve the problem.A contestant on a TV game show had $800 at the start of the show. She answered a $1000 question incorrectly, and later answered a $500 question correctly. What was her score after answering these two questions?
A. $300
B. -$400
C. $400
D. -$300
Answer: A
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Solve the problem.The hyperbola 
- 
= 1 is shifted horizontally and vertically to obtain the hyperbola
- 
= 1Find the foci of the new hyperbola.
A. (-1, -13), (-1, 11) B. (-13, -1), (11, -1) C. (-1, 19), (-1, -21) D. (-1, -21), (-1, 19)
Use the unit circle to determine the value of the given expression or state that it is undefined.tan (?)
A. 1 B. -1 C. undefined D. 0
Solve the problem.Using a phone card to make a long distance call costs a flat fee of $0.81 plus $0.16 per minute starting with the first minute. Find the total cost of a phone call which lasts 27 minutes.
A. $4.32 B. $27.13 C. $22.03 D. $5.13
Solve the problem.A system for tracking ships indicated that a ship lies on a hyperbolic path described by 
The process is repeated and the ship is found to lie on a hyperbolic path described by 
If it is known that the ship is located in the first quadrant of the coordinate system, determine its exact location.
A. (5, 8) B. (-5, -8) C. (-8, -5) D. (8, 5)