The population of Charlotte, North Carolina is approximately 840,000. What is this number in scientific notation?

(1 point)
Responses

84 times 10 superscript 5 baseline
Image with alt text: 84 times 10 superscript 5 baseline

84 times 10 superscript 4 baseline
Image with alt text: 84 times 10 superscript 4 baseline

8.4 times 10 superscript 5 baseline
Image with alt text: 8.4 times 10 superscript 5 baseline

8.4 times 10 superscript 4 baseline