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Ber [7]
3 years ago
8

Need help fast please with these 5 questions

Mathematics
1 answer:
Natali [406]3 years ago
3 0

Answer:

16.....................................

  • 6⁹*6ⁿ = 6¹²
  • 6⁹⁺ⁿ = ¹²
  • 9 + n = 12
  • n = 3

17.....................................

  • 7⁸/7ⁿ = 7³
  • 7⁸⁻ⁿ = 7³
  • 8 - n = 3
  • n = 5

18.....................................

  • 15ⁿ = 1
  • 15ⁿ = 15⁰
  • n = 0

19.....................................

  • 1/10⁵ = 10ⁿ
  • 10⁻⁵ = 10ⁿ
  • -5 = n
  • n = -5

20.....................................

  • (8²)ⁿ = 8¹²
  • 8²ⁿ = 8¹²
  • 2n = 12
  • n = 6

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Please help quickly !!
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