It is: 15
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It must end in 5 as that is the only number multiplied by itself 3 times that would give 5 as an answer. 5 cubed is 125 10 cubed is 1000 20 cubed is 8000 so the answer is between 10 and 20. 15 is only possibility in that range. 15 cubed is 3375
sqrt(3375) = ± 58.09 (approx)
That's the same as (-15) x (-15) x (-15). "Cubed" means that the number is multiplied by itself, appearing three times as a factor.
The inverse of finding the cube root is cubing the number. For example, the cubed root of 27 is 3. 3 cubed, (or 33) is 27.
Well, honey, the cubed numbers between 2000 and 3000 are 8 cubed (512), 9 cubed (729), 10 cubed (1000), 11 cubed (1331), 12 cubed (1728), 13 cubed (2197), 14 cubed (2744), and 15 cubed (3375). So, there you have it, sweetie!