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Earn +20 ptsQ: Why isn't 20 considered a square number?
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Continue Learning about Algebra
Can a number be both composite and square?
Yes.... look at the number 20. It's a composite and it does have a square root.
How many square feet is equal to 20 square meters?
20 square meters are 215.278208 square feet.
What number must be added to the polynomial to complete the square x2 - 20x?
Adding 100 completes the square. { I wonder why you want to complete the square when the expression already factors as x(x-20) }.
What is the square root of 20 simplified?
The square root of 20 simplified is ±4.5
The square root of 484?
The square root of 484 is 22. An easy trick to find this out is to round down to the nearest large whole number. In this case, that is 400, the square root of which is 20. If 20 x 20 = 400, what does 21 x 21 equal? Turns out that's 441. Move up to 22 x 22. There you have your answer!
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