Rationalize the denominator. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve.2|x| + 7 = 15
A. 
B. 
C. 
D. 
Mathematics
Write the augmented matrix for the system.-2x + 9y = 11 8y = 8
A. 
B. 
C. 
D. 
Mathematics
Find the indicated matrix product or state that the product is undefined.A = 
, B = 
AB
A. 
B. 
C. 
D. 
Mathematics
Solve the inequality. Graph the results.13x - 2 ? 12x + 2
A. x ? 4
B. x < 13 
C. x ? 4 
D. x > 13 
Mathematics