Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Combine.3.5 + (-2.1) - (-4.4) - 4.9 + (-0.2)
A. 0.7 B. 10.5 C. 1.7 D. 6.3
Mathematics
Factor the polynomial completely.x2 - x - 63
A. prime polynomial B. (x - 63)(x + 1) C. (x - 7)(x + 9) D. (x + 7)(x - 9)
Mathematics
Provide an appropriate response.Tell whether the statement is true or false. If it is false, give the correct answer. Explain your answer. The easiest way to simplify the expression 
is to multiply both the numerator and denominator by 4 + 
What will be an ideal response?
Mathematics
Evaluate the exponential expression.(-2)2
A. -4 B. -8 C. 4 D. 2
Mathematics