Accuplacer Practice Test

To express 350,000,000 in scientific notation, we need to represent it as a number between 1 and 10 multiplied by a power of 10.

In this case, we can rewrite 350,000,000 as 3.5 * 100,000,000. Since 100,000,000 is equal to 10^8, the scientific notation for 350,000,000 is 3.5 x 10^8.

Therefore, option A (3.5 x 10^8) is the correct answer. This is because the decimal point is moved 8 places to the left, representing the original number in scientific notation.

Options B, C, and D are incorrect because they do not properly represent the given number in scientific notation.