Question

3 will be the unit digit of the cube whose unit digit is 7 *

(true or false)​

Answer 1

Answer:

true

Step-by-step explanation:

cube was multipleid in 3 times like this

7×7×7×=343

Answer 2

Answer: True

So the number whose cube ends with 3 actually ends with 7. So the cube of 7 ends with 3 because 7 x 7 x 7 = 49 x 7 = 343, So we can say that the cube of a number that ends with 7 actually ends with 3. No matter what the other numbers are we only need the last number to know the last number of the resultant. you can actually test it by:

Let's say that the number whc=ich ends with 7 is 1387. 1387 is a random number I took. Now let's see its cube, its cube is 2,668,267,603 which ends with the number 3. You can take another number and try it yourself and it would give a number that ends with 3.