Find the exact value of the expression.tan 255°
A. 
+ 2
B. 
- 2
C. -
+ 2
D. -
- 2
Answer: A
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Solve the problem.A wildlife researcher is monitoring a black bear that has a radio telemetry collar with a transmitting range of 28 miles. The researcher is in a research station with her receiver and tracking the bear's movements. If we put the origin of a coordinate system at the research station, what is the equation of all possible locations of the bear where the transmitter would be at its maximum range?
A. x2 + y2 = 784 B. x2 + y2 = 28 C. x2 + y2 = 56 D. x2 - y2 = 28
Simplify. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Write the augmented matrix for the system of linear equations.
A. 
B. 
C. 
D. 
Solve the problem.The floor of a rectangular room is to be tiled with 
foot square tiles along a 10
foot wall. How many tiles will be needed along the wall?
A. 31
tiles
B. 30
tiles
C. 3
tiles
D. 35 tiles