A total of 7,803,100 tourists visited Country A from the year 2018 to the year 2020.

Round to the nearest place value, then express this number in the form of a single digit times an integer power of 10. (1 point)

1 answer

To round the number 7,803,100 to the nearest place value, we should look at the digit in the hundred-thousands place (which is 8 in this case). Since the next digit (the ten-thousands place) is 0, we keep the hundred-thousands digit the same. Thus, 7,803,100 rounded to the nearest hundred-thousands place is 7,800,000.

Next, to express 7,800,000 in the form of a single digit times an integer power of 10:

7,800,000 can be written as \(7.8 \times 10^6\).

Therefore, the final answer is:

\(7.8 \times 10^6\)