Find the indicated matrix product or state that the product is undefined.A = 
, B = 
BA
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Simplify the rational expression. (Assume the denominator is nonzero.)
A. 3x2 B. 12x2 C. 3x D. 12
Mathematics
Perform the indicated operation
Mathematics
For a quadrilateral to be a rectangle, how must the diagonals be related?
A. perpendicular B. congruent C. bisect each other D. congruent and bisect each other
Mathematics
Answer the question.According to the rules for order of operations, the first steps in evaluating the expression 
for 
are to substitute 2 for x and then .
A. subtract 49 from 4 B. find the cube of 2 C. subtract 4 from 49 D. multiply 4 by 2
Mathematics