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Vesnalui [34]
3 years ago
13

Write 9 as a product of two primes.

Mathematics
2 answers:
-BARSIC- [3]3 years ago
8 0

Step-by-step explanation:

so we start using repeated division to find 9 as a product of primes.

First divide 9 by the smallest prime factor it has.

9/3=3

Next, divide the result (3) by the smallest prime factor it has.

3/3=1

Once you reach 1, which we just did, you have finished.

Now collect all the results you have.

3x3

There you go, 9=3x3, as a product of primes.

or 3^2, if you want to write it in index notation.

This works for any integer.

NARA [144]3 years ago
4 0

Step-by-step explanation:

9 can be written as a product of 3 and 3

9=3×3 ( because 3 is a prime no. as it has two different factors ,i.e. 3 and 1)

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3 years ago
Write the sum using summation notation, assuming the suggested pattern continues.
Lina20 [59]

<u>ANSWER</u>

\sum _{n = 1} ^{18} (6n - 15)

<u>EXPLANATION</u>

The given series

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