what is the number 7.3*10^-8 written in decimal notation

The number 7.3*10^-8 written in decimal notation is 0.000000073.

To convert a number written in scientific notation to decimal notation, you can rewrite it by moving the decimal point according to the exponent.

In this case, the number is written as 7.3 * 10^(-8). To convert it to decimal notation, we move the decimal point 8 places to the left since the exponent is negative.

Starting with 7.3, we move the decimal point to the left eight times:

0.000000073

So, the number 7.3 * 10^(-8) written in decimal notation is 0.000000073.

To convert a number written in scientific notation to decimal notation, you need to move the decimal point to the left or right depending on the exponent of 10.

In this case, the number is 7.3 x 10^(-8). To convert it to decimal notation, you need to move the decimal point 8 places to the left because the exponent is negative.

Starting with 7.3, you move the decimal point 8 places to the left, filling in any empty spaces with zeros.

After moving the decimal point 8 places to the left, you get the decimal notation:

0.000000073