9. Write the following number in Scientific Notation: 8618000000
Solution
Step 1 ：Scientific notation is a way of expressing numbers that are too big or too small to be conveniently written in decimal form. It is commonly used by scientists, mathematicians and engineers, in part because it can simplify certain arithmetic operations.
Step 2 ：To write a number in scientific notation, we need to move the decimal point to the right of the first non-zero digit. The number of places we move the decimal point will be the exponent on 10. If we move the decimal to the left, the exponent will be positive. If we move the decimal to the right, the exponent will be negative.
Step 3 ：In this case, the number is 8618000000. The first non-zero digit is 8, so we need to move the decimal point 9 places to the left to get 8.618. The exponent on 10 will be 9.
Step 4 ：Final Answer: The number 8618000000 in scientific notation is \(\boxed{8.618 \times 10^9}\).
