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Subjects>Math>Algebra

The 8th triangular number is 36 what is the 7th triangular number?

Anonymous

∙ 13y ago

Updated: 10/9/2024

The formula for the nth triangular number is n(n+1)/2. If the 8th triangular number is 36, then we can set up the equation 8(8+1)/2 = 36. Solving for n, we get n = 7. Therefore, the 7th triangular number is 7(7+1)/2 = 28.

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∙ 13y ago

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Continue Learning about Algebra

What is 36 to the 8th power?

36 to the 8th power is 2,821,109,907,456

What are the square and triangular numbers less than 50?

Square: 1, 4, 9, 16, 25, 36, 49. Triangular: 1, 3, 6, 10, 15, 21, 28, 36, 45.

What are triangular numbers from 1 - 100?

-99

Is the square root of 36 a rational or irrational number?

The square roots of 36 are Â±6, therefore, sqrt(36) is a rational number.

Is the square root of 36 is an irrational number?

No because the square root of 36 is 6 which is a rational number

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