It is 0.0000000861
6.35 x 10^-4 = 0.000635
10 ^ -3 = 1/1000 = 0.001. Times 3.2 = 0.0032
10-2 = 0.01
10-7 = 0.0000001
9 times 10 to the power negative 1
The decimal form of 7.73 times 10 to the negative third power is 0.00773
Ten to the negative sixth power in decimal form is 0.000001
6.35 x 10^-4 = 0.000635
If you mean 8.61*10^-8 then it is 0.0000000861
10 ^ -3 = 1/1000 = 0.001. Times 3.2 = 0.0032
4 times 10 to the negative 26 power is expressed as ( 4 \times 10^{-26} ). This represents a very small number, specifically 0.0000000000000000000000004. In decimal form, it is equal to 0.000000000000000000000004.
10-2 = 0.01
4.05 times 10 to the third power = 40.5
10-7 = 0.0000001
-5/8 in decimal form is -0.625
4.05 x10 to the third power is 4,050
0.000000000278... Simply move the decimal point 10 places to the left - adding zeros to the start of the number as necessary.