242=576 and this is the first square number after 540. Remember that a square number is one that results from multiplying some natural number by itself. So if we multiply 2x2 it is 4 and 4 is a square number.
To see that 576 is the correct answer, look at 232 =529. This is less than 540. So if there was another number that was correct, it would have to come from a natural number greater than 23 and less than 24 but there are none. This gives you the answer and proves it it correct.
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The number of moles is 2,997.
The atomic number of Argon is 18. So 30 of them the Atomic Number would be 540.
To convert 540 feet per minute to miles per hour, you need to divide by 5280 (the number of feet in a mile) and then multiply by 60 (the number of minutes in an hour). Therefore, 540 feet per minute is approximately 6.14 miles per hour.
Ireland has a land area of approximately 32,595 square miles.
ml refers to liquids where oz is a measure of weight, so depending on what you are converting the number of oz will change