To express the value 385 500 in scientific notation with 1 significant figure we have to move the decimal point to the left until we're left with a number between 1 and 10:
385500.0
38550.00 (1 space)
3855.000 (2 spaces)
385.5000 (3 spaces)
38.55000 (4 spaces)
3.855000 (5 spaces)
The number of spaces we moved to the left, is going to be the exponent of the number 10 that we are going to multiply to that number
3.855000*10⁵
Finally, we round the number so we have only one number different from 0 and this is the number expressed with scientific notation to 1 significant figure:
4.0 * 10⁵
Have a nice day!
#LearnwithBrainly
