Find the actual difference.0.54 - (-0.21)
A. 0.85
B. 0.75
C. 0.33
D. 0.1134
Answer: B
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By calculating an appropriate number of terms, determine if the series converges or diverges. If it converges, find the limit L and the smallest integer N such that 
for 
otherwise indicate divergence.an = n cos 
A. L = 1, N = 28 B. L = 0, N = 28 C. L = 0, N = 37 D. diverges
Solve the problem.A psychology class decides to compare the social attitudes of students from urban and rural backgrounds. Class members are divided into two groups: 5 students who grew up in an urban setting and 3 students who grew up in a rural environment. Each member of a group is to meet with each member of the other group one time, at which time the pair will interview each other by asking questions about current social issues. After all the interviews are completed, the students will compile the results and draw conclusions. Draw a graph with vertices representing students and edges representing interviews. How many interviews will there be?
What will be an ideal response?
Classify the statement as true or false. If false, demonstrate why.
= 15
A. False; 6 ? 15 B. True
Use factoring to solve the equation.25k2 - 4 = 0
A. 
, - 
B. 
, - 
C. 2, 0
D. 
, 0