Answer: 
This is the same as saying 
====================================================
Work Shown:
where 
As the steps show above, the idea is to factor the radicand into smaller pieces where one of those pieces is the largest perfect square possible. In this case, 36 is the largest factor of 180 that's a perfect square. Then I used the rule 
to break up the root.
The parenthesis used at the very end is to help separate the 
from the 
term. The "i" is not under the square root.
Its kind of like how it is on a car to tell how fast your going i hoped this helped!
The answer is 2.2 .... hope this helps!! :D
I believe you mean decalitre
A Decalitre is a metric unit capacity, Equal to 10litres
Answer:
When we round to the nearest hundred, we must look at the tens digit.
If the tens digit is 5 or lager, then we round up (we add 1 to the hundreds digit and after that, all the digits are zero.)
If the tens digit is smaller than 5, then we round down (the hundreds digit remains unchanged and after that, we complete with zeros.)
Then, the rounded number is 1900.
a) The greatest whole number that rounds to 1900 would be a number that is rounded down, then it will be:
1949
b) The least whole number that is rounded to 1900 is a number that we round up, this is:
1850
