Question

If a number ends in two 9's, then its cube ends in what
number of 9's? Valid answer will be marked as brainliest​

Answer 1

Step-by-step explanation:

let's try to solve ur doubt using an example

say a number having two 9's be for example 199

cube of 199 = 7880599 ( using calculator )

So we can conclude that it ends with two 9's

9³ = 729 => ending with one 9

99³ = 970299 => ending with two 9's

U can check ur answers from the above examples

If u square any number ending with 9 it ends with 1 multiplying one 9 to it we get number ending with 9

thank you

pls mark as brainly

Stay safe