How is 6.3 written in scientific notation?

Explanation:

To express the number 6.3 in scientific notation, we need to follow a standard format where the number is between 1 and 10 followed by an exponent of 10.

For 6.3, this is already the case, so it can be expressed as 6.3×10^0 because any number raised to the power of 0 is equal to 1, so this does not change the value of 6.3.

Therefore, when writing in scientific notation, we are just acknowledging that we could move the decimal zero places and maintain the same value.