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2 years ago

Need help fast please with these 5 questions

Mathematics

1 answer:

Natali [406]2 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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