For the following question(s), refer to the digraph below.
Suppose that the vertices of the digraph represent individuals and there is an arc going from vertex X to vertex Y if and only if X "likes" Y. Which of the following statements [A), B), C), or D)] is not true?
A. E likes B but B does not like E.
B. B and C like each other.
C. E likes A and D but does not like B or C.
D. C and D do not like each other.
E. all of these statements are true.
Answer: A
You might also like to view...
Solve the problem.Let angle POQ be designated ?. Angles PQR and VRQ are right angles. If ? = 54°, find the length of VR accurate to four decimal places. 
A. 0.7265 B. 0.8090 C. 1.3764 D. 0.5878
Solve the problem.A guitar string is plucked so that it vibrates with a frequency of 
Suppose the maximum displacement at the center of the string is 
Find an equation of the form 
to model this displacement. Round constants to 2 decimal places.
A. s(t) = 0.49 cos 9.71t B. s(t) = 0.98 cos 9.71t C. s(t) = 0.98 cos 383.27t D. s(t) = 0.49 cos 383.27t
Solve.The scale on a map states that 1 centimeter corresponds to 20 kilometers. On the map, two cities are 7 cm apart. Find the actual distance.
A. 1400 km B. 140 km C. 14 km D. 14,000 km
Find the period.y = 5 sin
A. 5?
B. 8?
C. 
D. 4?