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? Express your answer in the form of a single digit times an integer power of 10.

Question

A. 2 x 10^11
B. 2.79 x 10^11
C. 3 x 10^-11
D. 3 x 10^11

Answer 1

The federal debt of country C at the end of fiscal year 2004, $278,560,125,000, can be expressed as 2.78560125 x 10^11.

The closest estimation of this amount in the given answer choices is B. 2.79 x 10^11.

Answer 2

How many times less is 10^2 than 10^6 express your answer as an integer power of 10

A. 10^4
B. 10^-4
C. 0.0001
D. 10,000

Answer 3

To determine how many times less 10^2 is than 10^6, we can divide the larger exponent (10^6) by the smaller exponent (10^2):

10^6 / 10^2 = 10^(6-2) = 10^4

So, 10^2 is 10^4 times less than 10^6.

The answer is A. 10^4.