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 write the number 7.3×10^−8 in decimal notation, we need to move the decimal point 8 places to the left, since the exponent is negative.
Starting with 7.3, we move the decimal point 8 places to the left, adding zeros as needed:
0.000000073
To convert a number in scientific notation to decimal notation, you need to move the decimal point a certain number of places based on the exponent.
In this case, you have the number 7.3 × 10^(-8). The negative exponent tells us that the decimal point needs to move to the left.
To find out how many places the decimal point needs to move, take the absolute value of the exponent (ignoring the negative sign). In this case, the absolute value of -8 is 8.
Now, we move the decimal point 8 places to the left, keeping in mind that if there are not enough digits to fill those places, we add zeros.
Starting with the number 7.3, we move the decimal point 8 places to the left, resulting in the final decimal notation: 0.000000073