RickRodriguez
RickRodriguez
22-05-2017
Mathematics
contestada
Can someone help me
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tonb
tonb
22-05-2017
Fill in x=19 and you get:
[tex]f(19) = \frac{3}{19+2} - \sqrt{19-3} = \frac{3}{21} - \sqrt{16} = \frac17 - 4 = -3\frac67[/tex]
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mreijepatmat
mreijepatmat
23-05-2017
Just replace x by 19==> f(19) = 3/(19+2) - √(19-3) ==> 3/21 - √16
3/21 - √16 = 3/21 - 4 . Reduce to same denominator f(19) =- 81/21 or -27/7
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