If and , what is the domain of the function…

MATHEMATICS · Single correct · AP · AP Precalculus · Exponential and Logarithmic Functions · Exponential and Logarithmic Functions

Problem

If

f(x)=\sqrt{x-3}

and

g(x)=x-5

, what is the domain of the function

(f+g)(x)

? (a)

(3,\infty)

(b)

[3,\infty)

(c)

(-\infty,\infty)

(d)

(5,\infty)

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