Simplify. Be sure to rationalize the denominator. Assume that all variables represent positive real numbers.
A. x - 5
B. x + 5
C. 
- 5
D. 
+ 5
Answer: C
Mathematics
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A = 
footB = 
foot
A. 
square foot
B. 
square foot
C. 
square foot
D. 
square foot
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A. D: (-?, ?)
B. D: (-?, 0]
C. D: [0, ?)
D. D: (-?, 0)
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Given the function f, match the function g with a transformation of f.f(x) = x2 - 7, g(x) = 3x2 - 21
A. f(x + 3) B. 3f(x) C. f(3x) D. f(x) + 3
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