It is 0.1
10 thousandths or 1/10000 is written as 0.0001 as a decimal.
10^-1 = 0.1
1/5 = 2/10 = 0.2
In standard form it is 1*10^1.
You could write it as 10^1.
10-6 = (1/10)6 = 0.000 001
10 million is 10 to the 6th power. When you raise it to the power of 10 you are making it 10 to the 6x10th power i.e. 10 to the 60th power. to write it out you would write a 1 followed by 60 zeros before any decimal point.
72 and 1/10 as a decimal is 72.1
10 thousandths or 1/10000 is written as 0.0001 as a decimal.
That would be 10/1,000,000,000 although it can simplify down to 1/100,000,000.
For a negative power of -k, the equivalent decimal is the decimal point followed by (k-1) zeros followed by 1.Thus 10^-5 = 0.00001
1 x 10^-9
point 1 .1 or.10
1 and 8/10 = 1.8
10/1000 = 1/100 = 1 ÷ 100 = 0.01
10^-1 = 0.1
1/5 = 2/10 = 0.2