Final answer:
1,450,000,000 in scientific notation is 1.45 x 10⁹. Scientific notation expresses numbers as a product of a number between 1 and 10 and a power of 10, which indicates how many places the decimal point has been moved.option a is correct answer.
Step-by-step explanation:
The number 1,450,000,000 written in scientific notation is 1.45 x 10⁹. To convert a number into scientific notation, you must create a number between 1 and 10 and then multiply it by 10 raised to the power of the number of places the decimal needs to move to get the original number back.
Since the decimal point in 1,450,000,000 needs to be moved nine places to the left to get 1.45, the correct answer is (a) 1.45 x 10⁹.In scientific notation, we use powers of ten to simplify the expression of large or small numbers.
For example, the number 2,760,000 in scientific notation is 2.76 x 10⁶, and for a smaller number like 0.00884, it is represented as 8.84 x 10⁻³. The value of the exponent in the scientific notation tells us how many places we have to move the decimal point to retrieve the original number.