Perform the row operation(s) on the given augmented matrix.R2 = -2r2 + r1
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Simplify the complex fraction.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Mathematics
Perform the indicated operation and express in lowest terms.
÷ 
A. - 
B. 
C. 
D. 
Mathematics
Name the property used to go from step to step indicated by an a), b), c), or d).
What will be an ideal response?
Mathematics
Suppose a calculator manufacturer has the total cost function 
and the total revenue function 
, where x represents the number of calculators sold. What is the equation of
the profit function, 
, for the calculator manufacturer?
?
A. 
B. 
C. 
D. 
E. 
Mathematics