Decide whether the pair of lines is parallel, perpendicular, or neither.6x + 2y = 812x + 4y = 19
A. parallel
B. perpendicular
C. neither
Answer: A
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Decide whether or not the equation has a circle as its graph. If it does not, describe the graph.5x2 + 5y2 + 40x - 30y + 120 = 0
A. no; the graph is nonexistent B. yes C. no; the graph is the point (4, -3) D. no; the graph is the point (-4, 3)
Solve the problem.Given f(x) = ln x, evaluate the following. (a) f(e4) (b) f(eln 4) (c) f(e2 ln 4)
What will be an ideal response?
Solve the problem. Use 3.14 for ?.A figure skater must trace a figure eight on the ice that consists of two perfect circles, each with a radius of 
How far does the skater go one time around the figure eight?
A. 21.98 ft B. 19.98 ft C. 43.96 ft D. 87.92 ft
The recurrence relation for the differential equation 
is
Select the correct answer.
?
A. 
B. 
C. 
D. 
E. 