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RoseWind [281]
3 years ago
11

If the square root of 1 over 2 x - 10 added by 3, which inequality can be used to find the domain of f(x)?

Mathematics
1 answer:
jeyben [28]3 years ago
4 0
From the description, we have the function f(x)= \sqrt{ \frac{1}{2x-10}+3 }
Since the square root cannot be a negative number, the only thing need to do to find the domain of the function f(x) is take the expression inside the square rot and set it greater or equal than zero:
\frac{1}{2x-10}+3  \geq  0
\frac{6x-29}{2x-10}  \geq 0
\frac{6x-29}{2(x-5)}  \geq 0
x \leq  \frac{29}{6} or x\ \textgreater \ 5

We can conclude that we can use the inequality \frac{1}{2x-10}+3 \geq 0 to find the domain of f(x). Also, the domain of f(x) is (∞,\frac{29}{6}]U(5,∞).

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