Which of the following expresses 374274 in scientific notation
3.74274 x 10^5
To express a number in scientific notation, we write it in the form of a×10^n, where a is a number between 1 and 10 (inclusive) and n is an integer.
For the number 374274, we need to move the decimal point to the left until we have a number between 1 and 10.
Moving the decimal point 5 places to the left, we get 3.74274.
Therefore, 374274 can be expressed in scientific notation as 3.74274 × 10^5.