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3 years ago

Find all n in N that satisfy (2^n)-1 divisible by 9

Mathematics

1 answer:

zmey [24]3 years ago

7 0

Answer:

u can use the hit and trial method for this

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The perimeter of an equilateral triangle is 6n - 15. Write an expression to represent the length of each side.

Kamila [148]

Answer:

Each side is 2n - 5.

Step-by-step explanation:

The perimeter of an equilateral triangle is given by:

$P=3s$

Where s is the length of each side.

The total perimeter is given by:

$6n-15$

So, by substitution:

$6n-15=3s$

Then the length of each side is:

$s=\displaystyle \frac{1}{3}(6n-15)=2n-5$

Each side measure 2n - 5.

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3 years ago

Find all n in N that satisfy (2^n)-1 divisible by 9​

Find all n in N that satisfy (2^n)-1 divisible by 9