What is 420 000 cm in scientific notation?

Answer 1

To convert a number to scientific notation, you first need to divide that number by a power of 10 such that the answer has units as the greatest place value. In this case, you can divide by 100,000 to give 4.2 The next step is to display the power of 10 you used alongside this number as a multiplication. We used 100,000 which is the 5th power of 10 or 105. Thus, 420,000 in scientific notation is:

4.2x105