3. Convert 0.000072 to scientific notation.

7.2*10-5 the - 5 is the exponent

Step-by-step explanation:

You have to move the decimal where there is no zeros when ever you move the decimal to the right is a positive and when ever you move the decimal to the left is a negative exponent for example: 0.0000568 is

5.68 * 10-5 the - 5 is the exponent. The positive is 450000 = 4.5*10 5 the 5 is the exponent