Ummm honestly i don’t know
ANSWER

EXPLANATION
The given functions are

and

The function,

This implies that,

The domain of this rational function refers to all values of x for which

is defined.
This function is defined if the denominator


In interval form, we write this as,

The correct answer is C.
I hope this helps you
Surface Area=2.pi.6.8
Surface Area=96pi
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