If your number is quite large, like 3 digit or higher than that, then calculate the sum of their digits, if they will be divisible by 3, then the number is divisible, otherwise not.
For example. - "11055"
Here, sum of digits = 1 + 1 + 0 + 5 + 5 = 12
As 12/3 = 4 (Divisible)
In short, This number would be divisible.
Hope this helps!
Answer:
17
Step-by-step explanation:
square root of x-1 +5=9
square root of x-1 = 4multiple by power of 2 because square root is cancled by 2.
x-1=16,x=17
A point, and nothing more
Skewed left :) Hope this helps!
Answer:

Step-by-step explanation:
The sum of a polygon's interior angles is found using this formula:

where n is the number of sides. This polygon has 19 sides.




The sum of the interior angles is <u>3,060 degrees.</u>