Use the Functions $f ( x ) = \frac { 1 } { 125 } x - 5$

question 51

Multiple Choice

Use the functions $f ( x ) = \frac { 1 } { 125 } x - 5$ and $g ( x ) = x ^ { 3 }$ to find $( f \circ g ) ^ { - 1 }$ .

• A) \(( f \circ g ) ^ { - 1 } = \frac { x ^ { 3 } + 5 } { 5 }\)
• B) \(( f \circ g ) ^ { - 1 } = \frac { x ^ { 3 } - 625 } { 125 }\)
• C) \(( f \circ g ) ^ { - 1 } = \frac { \sqrt [ 3 ] { x + 5 } } { 5 }\)
• D) \(( f \circ g ) ^ { - 1 } = 5 x + 5\)
• E) \(( f \circ g ) ^ { - 1 } = 5 \sqrt [ 3 ] { x + 5 }\)

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