Simplify the rational expression. If the expression is already in simplest form, state this as your answer.
A. 
B. 
C. 
D. simplest form
Answer: B
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Find the absolute maxima and minima of the function on the given domain.
on the square 
A. Absolute maximum: 4 at 
and 
absolute minimum: 3 at 
and 
B. Absolute maximum: 4 at 
and 
absolute minimum: 0 at 
C. Absolute maximum: 12 at 
and 
absolute minimum: 0 at 
D. Absolute maximum: 12 at 
and 
absolute minimum: 4 at 
and 
Solve the linear system using an inverse matrix.
A. (1, -2) B. (2, -1) C. (-1, 2) D. (-2, 1)
Use the information in the table to solve the problem. Write your answer as a fraction in lowest terms.The table below shows the amounts of pollutants (in parts per million) in a sample of rainwater.
Find the ratio of pollutant E to pollutant A.
A. 
B. 
C. 
D. 
Solve by the substitution method.5x + 7y = 49 2x - 4y = -28
A. {(0, 7)} B. {(-1, 8)} C. ? D. {(0, 8)}