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Find the Indicated Function and Write Its Domain in Interval s(x)=x2x264,t(x)=x+8,(st)(x)=?s ( x ) = \frac { x - 2 } { x ^ { 2 } - 64 } , t ( x ) = \sqrt { x + 8 } , ( s \cdot t ) ( x ) = ?

Question 84

Multiple Choice

Find the indicated function and write its domain in interval notation.
- s(x) =x2x264,t(x) =x+8,(st) (x) =?s ( x ) = \frac { x - 2 } { x ^ { 2 } - 64 } , t ( x ) = \sqrt { x + 8 } , ( s \cdot t ) ( x ) = ?


A) (x2) (x+8) (x8) x+8;(8,2) (2,8) (8,) \frac { ( x - 2 ) } { ( x + 8 ) ( x - 8 ) \sqrt { x + 8 } } ; ( - 8,2 ) \cup ( 2,8 ) \cup ( 8 , \infty )
B) (x2) x+8(x+8) (x8) ;(8,8) (8,) \frac { ( x - 2 ) \sqrt { x + 8 } } { ( x + 8 ) ( x - 8 ) } ; ( - 8,8 ) \cup ( 8 , \infty )
C) (x2) x+8(x+8) (x8) ;(8,2) (2,8) (8,) \frac { ( x - 2 ) \sqrt { x + 8 } } { ( x + 8 ) ( x - 8 ) } ; ( - 8,2 ) \cup ( 2,8 ) \cup ( 8 , \infty )
D) (x2) (x+8) (x8) x+8;(8,8) (8,) \frac { ( x - 2 ) } { ( x + 8 ) ( x - 8 ) \sqrt { x + 8 } } ; ( - 8,8 ) \cup ( 8 , \infty )

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