Simplify the rational expression. If the expression is already in simplest form, state this as your answer.
A. x + 7
B. 
C. 
D. x - 7
Answer: A
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Let A = {1, 3, 5, 7}B = {5, 6, 7, 8}C = {5, 8}D = {2, 5, 8}U = {1, 2, 3, 4, 5, 6, 7, 8}.Determine whether the statement is true or false.{ } ? C
A. False; the elements in the empty set are not the same elements as in U. B. False; the empty set is not a subset of any set. C. True D. False; the empty set is not a subset of U.
Solve the equation.log5(x - 2) = 3
A. {17} B. {123} C. {13} D. {127}
Convert to a mixed numeral.
A. -13
B. -12
C. -12
D. -11
Solve the problem.Sam drives a distance of m miles to work traveling at an average speed of x mph. On the way home, he drives 3 mph faster. The expression 
+ 
, represents the total amount of time in hours it takes for Sam to drive to work and back. Represent this amount of time as a single rational expression.
A. 
B. 
C. 
D. 