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Earn +20 ptsQ: How do you determine that 72 isn't a square number?
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How do you determine that 72 is not a square number?
You take the square root of the number. If it is a perfect square, this will be a whole number. If it is not, it isn't a perfect square.
The sum of the number and its square is 72 what is the number?
82 + 8 = 64 + 8 = 72
Is the square root 72 a rational number?
No, they are not.
Find a positive number that equals to 72 when added to its square?
82+8 = 72
Is 72 square?
82 = 8 x 8 = 64 92 = 9 x 9 = 81 Since 72 is in between these answers 72 is not square. (The square root of 72 = 8.485281374...) There is no whole number which when multiplied by itself gives an answer of 72.
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