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26-06-2020
Mathematics

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Given f(x) = √(x-3) , what is the positive value of f(12)?

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jimrgrant1 jimrgrant1

26-06-2020

Answer:

3

Step-by-step explanation:

Given

f(x) = [tex]\sqrt{(x-3)}[/tex] , then

f(12) = [tex]\sqrt{12-3}[/tex] = [tex]\sqrt{9}[/tex] = ± 3

There are 2 values 3 and - 3

The positive value of f(12) is + 3

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