at the end of fiscal year 2004, the federal debt of country C is $278,560,125,000. what is the closest estimation of this amount?

Question

express your answer in the form of a single digit times an integer power of 10

2.79 x 10^11
3 x 10^11
2 x 10^11
3 x 10-^11

Answer 1

To express the federal debt of country C, which is $278,560,125,000, in the form of a single digit times an integer power of 10, we can first look at the leading digits.

The number is approximately 2.78560125 × 10^11. However, for estimation purposes, we can round it to 2.8 × 10^11, which is close to 2.79 × 10^11.

Thus, the closest estimation of this amount in the given options is:

2.79 × 10^11