What is 0.045 in scientific notation

The decimal point moves 2 spaces to the left to be placed before 4, which is the first non-zero number. Thus its 4.5 x 10-2 The answer is in negative since the decimal moved left. The decimal point moves 5 places left to be placed after 2, which is the first non-zero number.

The decimal point moves 2 spaces to the left to be placed before 4, which is the first non-zero number. so its 4.5 x 10-2 The answer is in negative since the decimal moved left. The decimal point moves 5 places left to be placed after 2, which is the first non-zero number.