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dexar [7]
3 years ago
9

Pls!! f(x)=√x+2 and g(x)=9x−4 f(g(x))= f(g(3))= show work pls thank uu

Mathematics
1 answer:
Monica [59]3 years ago
5 0

Answer:

  • Find f(g(x)) by substituting the entire g(x) function for x in f(x)
  • f(x)=\sqrt{x} +2\\f(g(x))=\sqrt{(9x-4)} +2 that's the answer
  • Then f(g(3)) is just putting in place of x in our new equation
  • f(g(x))=\sqrt{(9x-4)} +2\\f(g(3))=\sqrt{(9(3)-4)} +2\\f(g(3))=\sqrt{(27-4)} +2\\f(g(3))=\sqrt{(23)} +2\\f(g(3))=6.80  rounded to 2 decimal places
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