Question

What os the lowest value of 3√729​

Answer 1

Answer:

The cube root of 729 is 9.

I actually figured this out in my head. First, I eliminated all even numbers because an even number multiplied by any number is always even. I then added up the digits of 729 and got 18, then added the digits of 18 to get 9; this tells me that 9 is a factor of 729, and possible factors of 729 include 3 or 9. Then I noted that 10 cubed is 1000, so the answer has to be less than 10. (I also noted that 5 cubed is 125, so the answer has to be between 5 and 10; this was more of an afterthought, though.) This makes 9 the most likely candidate, so I cubed 9: 9 x 9 = 81, and 81 x 9 = 729. Piece of cake.

I hope this answer helpful for you

Answer 2

Answer:

9

Step-by-step explanation:

729 = (9)^3

So 3√729 =9

Hope it helps.