Assume you have a graph with vertex set V = {A, B, C, D, E} and edge set E = {CD, CB, DA, DB, EA, AA}.The bridges of the graph are
A. DA and EA.
B. DA only.
C. DA, EA, and AA.
D. CD, DA, and EA.
E. none of these
Answer: A
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Evaluate the integral.
dt
A. 8 cos 
+ C
B. -cos 
+ C
C. - 
cos 
+ C
D. 
cos 
+ C
An object weighing W pounds is suspended from the ceiling by a steel spring (see figure). The weight is pulled downward (positive direction) from its equilibrium position and released. The resulting motion of the weight is described by the function
?
?
where y is the distance (in feet) and t is the time (in seconds).
Use a graphing utility to select the graph of the function.
?
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Match the inequality with the correct graph or interval notation.x ? 4
A. (-?, 4] B. [4, ?) C. (-?, 4) D. (4, ?)
Solve the problem.One maid can clean the house in 4 hours. Another maid can do the job in 8 hours. How long will it take them to do the job working together?
A. 2
hours
B. 
hours
C. 8 hours
D. 
hours