Let U = {1, 2, 4, 5, a, b, c, d, e}. Find the complement of the set.S = {1, 5, e, d, a}
A. {2, 3, 4, a, b, c}
B. {2, 4, b, c}
C. {1, 2, 4, b, c}
D. {2, 3, 4, b, c}
Answer: B
Mathematics
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Find all solutions of the equation in the interval [0, 2?).2 cos
- 
= 0
A. 
, 
B. 
, 
C. 
, 
D. 
, 
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The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport. Use the graph to answer the question.
What temperature was recorded at 2 p.m.?
A. 78 ° F B. 76 ° F C. 79 ° F D. 80 ° F
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Find the integral.
ln 6x dx
A. 0.51 B. 1.46 C. 0.71 D. 0.49
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Translate to a proportion and solve. What is 4
% of 81? Round to the nearest hundredth if necessary.
A. 34 B. 0.03 C. 3.4 D. 340
Mathematics