2-21-11 is an American abbreviated version of the date.
2 - the month (February)
21 - the day
11 - the year
2 over 21 as a decimal = 0.0952382 over 21= 2/21= 2 ÷ 21= 0.095238
C+ (-2)= 21= 21+2= 23+ (-2)= 21 23+ (-2)= 21 is the same as 23- 2= 21
21 divided by 2 is 21/2=10.5
21/2 = √2 ≈ 1.414 The rules of indices are that when multiplying add them. 21/2 x 21/2 = 21/2 + 1/2 = 21 = 2 So multiplying 21/2 by itself gives 2. But what number multiplied by itself gives 2? The answer is the square root of 2. Thus 21/2 is the square root of 2.
2/21
Factors of 21: 1, 3, 7, 21 Factors of 2: 1, 2 GCF (21, 2) =
2/21 is in its simplest form.2/21 is in its simplest form.
42 ÷ 21 = 2
-44
1/3 + 2/21 = 7/21 + 2/21 = 9/21 = 3/7
% rate = 9.5238% = 2/21 * 100% = 0.095238 * 100% = 9.5238%
2/3 x 21 = 2 x 21 / 3 = 14