Question

a total number of 7,803,100 tourist visited country A from the year 2018 to the year 2020. round the nearest place value, the express
this number in the form of a single digit times as a integer power of 10.

Answer 1

To express 7,803,100 in the form of a single digit times an integer power of 10, we need to move the decimal point until there is only one non-zero digit to the left of it.

Starting with 7,803,100, we can move the decimal point four places to the left to get 780,310.0, with one non-zero digit (7) to the left of the decimal point.

Since we have moved the decimal point four places to the left, the number can be expressed as 7.8031 × 10^6.

Rounding to the nearest place value, the final expression for 7,803,100 is 7.8 × 10^6.