Here is how to think of and see the answer. 10 to the 0 power is 1 10 to the 1 power is 10, that is 1 with 1 zero 10 to the 2nd power is 100, that is 1 with 2 zeros we continue on until we get to the 9th power and 10 to the 9th is 1000000000 which is 1 with 9 zeros.
1,000,000
1,000,000,000
100000000
1000000000
10000000
10,000,000,000
10 to the negative 12 power
1,500,000,000
It is: 500,000,000
100 to the 9th power is 1,000,000,000,000,000,000 (one quintillion).
10 to the 17th power.
10,000,000,000
10 to the negative 12 power
X to the 9th power
8,862,000,000
1,500,000,000
It is: 500,000,000
4,730,000,000
1,000,000,000.
10 to the 9th power is: 1,000,000,000
10 to the 9th power = 1000000000 = 1 billion
1.0 x 10-9 is 0.0000000010