Which of the following is the correct representation of 0.00045 in scientific no
Practice Questions
Q1
Which of the following is the correct representation of 0.00045 in scientific notation?
4.5 × 10^-4
4.5 × 10^-3
45 × 10^-5
45 × 10^-4
Questions & Step-by-Step Solutions
Which of the following is the correct representation of 0.00045 in scientific notation?
Step 1: Identify the number you want to convert to scientific notation, which is 0.00045.
Step 2: Move the decimal point to the right until you have a number between 1 and 10. For 0.00045, move the decimal point 4 places to the right to get 4.5.
Step 3: Count how many places you moved the decimal point. In this case, you moved it 4 places.
Step 4: Since you moved the decimal to the right, you will use a negative exponent. The exponent will be -4.
Step 5: Combine the number and the exponent to write it in scientific notation: 4.5 × 10^-4.
