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VashaNatasha [74]
2 years ago
13

PLS HELP ME I'M SO CONFUSED!!!!!!

Mathematics
2 answers:
LenKa [72]2 years ago
5 0

Answer:

  • a = -3, b = 2.5, c = - 1/2

Step-by-step explanation:

1)

  • 3^a=1/27
  • 3^a=1/3^3
  • 3^a=3^{-3}
  • a=-3

2)

  • 3^b=9\sqrt{3}
  • 3^b=3^2*3^{1/2}
  • 3^b=3^{2+1/2}
  • 3^b=3^{2.5}
  • b=2.5

3)

  • 3^c=1/\sqrt{3}
  • 3^c=1/3^{1/2}
  • 3^c=3^{-1/2}
  • c = - 1/2

WARRIOR [948]2 years ago
3 0

Step-by-step explanation:

You have to use logarithms.

1) a = log_3 (1/27) = -log_3 (27) = -3

2) b = log_3 (9 * 3^(1/2)) = log_3 (3 ^ {5/2}) = 5/2

3) c = -log_3 (sqrt3) = -1/2

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