Tell whether the given rational expression is proper or improper. If improper, rewrite it as the sum of a polynomial and a proper rational expression.
A. proper
B. improper; -1 + 
C. improper; 1 + 
D. improper; 1 - 
Answer: B
Mathematics
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Use a grapher to graph the function.Two signals are seen on an oscilloscope as being at right angles. The equations for the displacement of these signals are 
Graph the figure that appears on the oscilloscope.
A. 
B. 
C. 
D. 
Mathematics
Simplify.
A. 
B. 
C. 
D. 
Mathematics
Find the indicated term for the arithmetic sequence with the first term a1 and the common difference d. Find a31 when a1 = -4, d = 
A. - 
B. - 24
C. 16
D. 
Mathematics
Does the graph represent a function that has an inverse function?
A. Yes B. No
Mathematics