Question

The planet Neptune is approximately 15,300 thousands miles. how is this written in scientific notion?

Responses

A. 0.153 x 10^5
B. 0.153 x 10^-5
C. 1.53 x 10^4
D. 1.53 x 10^-4

Answer 1

To convert 15,300,000 miles (which is 15,300 thousands of miles) into scientific notation, we first express it in standard form:

15,300,000 = 1.53 x 10^7 (since you move the decimal point 7 places to the left to get 1.53).

However, the original number you provided was in thousands of miles. Thus, we need to account for this by dividing the result by 1,000 (or 10^3):

1.53 x 10^7 miles = 1.53 x 10^7 miles (in standard form).
Now, converting back to the thousands:

1.53 miles x (10^7 (miles) / 10^3 (thousands)) = 1.53 x 10^4 thousands of miles.

So, the correct answer in scientific notation for 15,300 thousands of miles is:

**C. 1.53 x 10^4.**