if f(x)=square root of 1/2x -10+3 which inequality can be used to find the domain of f(x)?

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03-04-2017
Mathematics

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if f(x)=square root of 1/2x -10+3 which inequality can be used to find the domain of f(x)?

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ghanami ghanami · Answer 1 · 2017-04-03T11:05:34+02:00

ghanami ghanami

03-04-2017

hello :
f(x) = √(0.5x-10) +3

inequality can be used to find the domain of f(x) is : 0.5x-10 ≥ 0
0.5x ≥10
x ≥10/0.5
x ≥ 20

the domain of f(x) is : D = [20 ; + ∞[

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sillybluenashara sillybluenashara · Answer 2 · 2018-10-15T18:21:20+02:00

sillybluenashara sillybluenashara

15-10-2018

1/2x-10>0 is the correct answer

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