Tell whether the relation is reflexive, symmetric, or transitive on the set of subsets of a nonempty set. Also tell whether the relation is an equivalence relation."Is the complement of"
A. None; not an equivalence relation
B. Symmetric and transitive; not an equivalence relation
C. Reflexive; not an equivalence relation
D. Symmetric; not an equivalence relation
Answer: D
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Evaluate the integral.
A. - 
y2 sin 9y + 
y cos 9y + 
sin 9y + C
B. - 
y2 cos 9y + 
y sin 9y + 
cos 9y + C
C. - 
y2 cos 9y + 
y sin 9y + 
cos 9y + C
D. 
y2 cos 9y - 
y sin 9y - 
cos 9y + C
Solve the equation for the indicated variable.A = P(1 + nr); solve for r
A. r = 
B. r = 
C. r = 
D. r = 
Solve the commission problem.A salesperson earned $3,625 for selling chemicals to industry. If his commission rate is 5%, find the selling price of the chemicals.
A. $73,500 B. $715,000 C. $725,000 D. $72,500
Solve the problem.Find the exact time of a loan made on July 7 and due on January 13.
A. 188 days B. 173 days C. 190 days D. 183 days