To convert \(2.09 \times 10^5\) to decimal notation, you move the decimal point 5 places to the right (because of the exponent 5).
Starting with \(2.09\):
- Move the decimal point 5 places to the right:
- Move 1 place: 20.9
- Move 2 places: 209.0
- Move 3 places: 2090.0
- Move 4 places: 20900.0
- Move 5 places: 209000.0
So, \(2.09 \times 10^5\) in decimal notation is \(209000\).
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