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2 years ago

What is the sum of the 12th square number and the 9th square number

Mathematics

1 answer:

Inessa [10]2 years ago

6 0

Answer: 225

Step-by-step explanation:

<u>What is a square number</u>?

A square number is a product of a number times itself

So, the 12th square number would be 12 * 12, or 12²

The 9th square number would be 9 * 9, or 9²

The equation would be 12² + 9²

So:

12² + 9²

= 144 + 81

= 225

So, the answer is 225

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FinnZ [79.3K]

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$x+y=100$

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$\implies x=20$

$\implies y=100-20=80$

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