Simplify the rational expression. If the rational expression cannot be simplified, so state.
A. 1
B. cannot be simplified
C. -m
D. -1
Answer: D
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Use the given conditions to write an equation for the line in slope-intercept form.Passing through (5, 3) and perpendicular to 
A. y = 
x - 
B. y = - 
x + 
C. y = - 6x - 23
D. y = - 
x - 
Graph the function.The air pressure within a plastic container changes above and below the external atmospheric pressure by 
. Sketch two cycles of p as a function of time. Label the point on the horizontal axis which represents the end of the second cycle.
A. 
B. 
C. 
D. 
Middletown is designing a new high-speed rail system to connect Downtown, the Airport, and the Mall. The elevated tracks for the rail system will run along the existing roads, that run on a grid as shown below. In addition, a central switching station must be located at one of the intersections.
What is the length of the optimal network?
A. 7 blocks
B. 8 blocks
C. 5 + 
blocks
D. 9 blocks
E. none of these
Solve the absolute value equation.|x - 8| = 6
A. x = 2, -14 B. x = 2, 14 C. x = -2, 14 D. x = 14