Write the expression using a single radical sign. Assume that all variables represent positive real numbers. Simplify the radicand if possible.
A. 
B. 
C. x
D. 
Answer: C
Mathematics
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Solve.Find two numbers whose product is 21 and the sum of whose reciprocals is 
A. 63 and 
B. 3 and 7
C. 441 and 
D. 147 and 
Mathematics
Given the matrix, perform elementary row operation to obtain a 1 in the row 1, column 1 position.
?
?
A. RowSwap ([A], 1, 3) B. RowSwap (1/2,[A], 3) C. RowSwap ([A], 2, 3) D. RowSwap (1/2,[A], 1) E. RowSwap ([A], 1, 2)
Mathematics
Provide an appropriate response.Evaluate det 
.
A. ew - tn B. ew + tn C. en - tw D. et - nw
Mathematics
Which of the following formulas illustrates the associative property of multiplication? ?
A. 
B. 
C. 
D. None of these
Mathematics