Which of the following is equal to 393,500? 3.935 × 10 -5 3.935 × 10 5 0.3935 × 10 -6 39.35 × 10 -4

The answer would be

You start at the right and move the decimal over behind the first 3. If you count the places of 393,500 from right to left, you will see that after counting 5 places the decimal will be at 3.93500 so that means raise to the power of 5. Also, drop the zeros so we have 3.93500 = 3.935 =