Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Evaluate or simplify the expression without using a calculator.ln 
A. 6
B. 
C. 6e
D. 
Mathematics
Solve and graph. Write the answer in set-builder notation.-7 ? 
A. {x |x ? -35}
B. {x |x > -35}
C. {x |x ? -35}
D. {x |x < -35}
Mathematics
In a right triangle, find the length of the side not given. Let c represent the length of the hypotenuse. Give an answer to the nearest tenth if necessary.a = 6 in., b = 8 in.
A. c = 10 in. B. c = 48 in. C. c = 14 in. D. c = 100 in.
Mathematics
Evaluate if possible.
+ 
A. 21
B. 19
C. 261
D. 3
Mathematics